i don't know that i'm any smarter about that now than when i first came to k-town in the middle of the night to discover a strange and fabulous and delicious slice of america i had never known was there, but i'm trying to figure it out. ♪ ♪

♪ ♪ there are few places harder to get to in this world, but there aren't in where it's harder to live. the average temperature here at the bottom of the earth is a balmy 58 degrees below.

that's when the sun is out. it wasn't always like this. antarctica used to be a tropical place. densely forested and teeming with life, but then the continent started to drift south. and by the time it was done drifting we the dense forest was replaced with a new ground cover. ice. as for the former inhabitants, they all died and moved on long ago. well, almost all of them. legend has it that one tribe stayed behind. ♪ >> perhaps they thought the change in weather was only temporary, or maybe they were just stubborn. but for whatever their reasons, these souls refused to leave.

for millions of years, they have made their home on the darkest, driest, windiest, and coldest continent on earth, and they have done so pretty much alone. so in some ways, this is a story of survival, a tale of life over death, but it is more than that, really. this is a story about love. like most love stories, it begins with an act of utter foolishness. the emperor penguin is technically a bird, although one that makes his home in the sea. so if you're wondering what he's doing up here on the ice, well, that's part of our story. each year, at around the same time, he will leave the comfort of his ocean home and embark on

a remarkable journey. he will travel a great distance. and though he is a bird, he won't fly. though he lives in the sea, he won't swim. mostly he will walk, but he won't walk alone. ♪ >> it is march. summer is over. and another long polar winter is about to begin. the birds have been feeding in the ocean waters for three months. now their bellies full, it is time to find a mate. ♪ >> their breeding ground can be up to 70 miles away. to get there, they will walk day and night continuously.

sometimes for a week. it is a long, dangerous and seemingly impossible journey, and some of them will not survive it. nonetheless, when the last of the clan is finally clambered onto the ice, their long march will begin, just as it has for thousands of years. ♪ ♪

>> their destination is always the same. their path, however, is not.

the ice on which the birds travel never stops shifting and changing. new road blocks will appear to baffle them every year. we're not exactly sure how they find their way. perhaps they were assisted by the sun or the stars, or maybe having taken this march for thousands of generations, they are guided by some invisible compass within them. they never stay stumped for long. eventually, one of them will pick up the trail and the journey continues. ♪ ♪

>> when they get tired of walking, they'll give their feet a rest. they'll use their bellies instead. ♪ ♪

>> theirs is usually a graceful parade, but not always. ♪ >> each day the temperature drops a little further and the sun will set earlier. the weather becomes noticeably hasher, almost by the hour. by now, similar caravans are approaching from every direction and finally, often on the same day, even around the same time, they will arrive at the place where each and every one of them was born.

♪ ♪

>> here they will mate in relative safety. they are now far from the water's edge where most predators lurk and the large ice walls will offer some protection from the harshest winds. but the real reason they have chosen this place lies beneath their feet. the ice is thicker here. it will stay solid until summer, keeping their young from accidentally falling through into the freezing ocean. and so, having arrived, they begin to pursue their journey's purpose, finding a mate. we don't really know what they are looking for in a partner. we only know that they are, in fact, looking. we also know when they have found what they are looking for.

emperor penguins are monogamous sort of. they mate with only one partner per year. which means every new season, all bets are off. because there are fewer males than females here, hostilities among the ladies are inevitable. a taken male instantly becomes an unavailable male, so occasionally a female will attempt to interrupt a courtship. the men don't seem to mind. they just wait for the fight to end and take the opportunity to preen. they're not that different from us, really. they pout. they bellow. they strut.

and occasionally they will engage in some contact sports. ♪ ♪ me back. how is everything? there's nothing like being your own boss! and my customers are really liking your flat rate shipping. fedex one rate. really makes my life easier. maybe a promotion is in order.

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so i had a serious talk with my dermatologist about my treatment options. this time, she prescribed humira-adalimumab. humira helps to clear the surface of my skin by actually working inside my body. in clinical trials, most adults with moderate to severe plaque psoriasis saw 75% skin clearance. and the majority of people were clear or almost clear in just 4 months. humira can lower your ability to fight infections, including tuberculosis. serious, sometimes fatal events, such as infections, lymphoma, or other types of cancer have happened. blood, liver and nervous system problems, serious allergic reactions, and new or worsening heart failure have occurred. before starting humira, your doctor should test you for tb. ask your doctor if you live in or have been to a region where certain fungal infections are common. tell your doctor if you have had tb, hepatitis b, are prone to infections, or have symptoms such as fever, fatigue, cough, or sores. you should not start humira if you have any kind of infection. make the most of every moment.

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within a few weeks, one way or the other, most of the animals have found the one they are looking for.

♪ ♪ ♪

>> for the next eight months, these two will participate in an ancient and complicated affair. there will be tenderness, there

will be separation, there will be reunion, and if their partnership is successful, there will be new life. for now, they wait. for the egg and for the brutal winter, which will do everything in its power to destroy that egg. ♪ ♪ >> by may, the light will nearly have disappeared from the sky, and the temperature continues to drop. and for those who begin their march too late or have fallen

behind because of weakness or hunger, hope of survival is now remote. the lone penguin has no chance against the winter's cold. he will simply fade away, absorbed by the great whiteness all around him. ♪ ♪ [ male announcer ] this is the story of the little room over the pizza place on chestnut street the modest first floor bedroom in tallinn, estonia and the southbound bus barreling down i-95. ♪ this magic moment

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i'm martin savidge in atlanta. here are the headlines. dangerously cold temperatures have gripped much of the country forcing thousands of flights to be canceled and many school closures in chicago and detroit. temperatures expected to be 50 degrees below average in some places. by wednesday, nearly half the nation will shiver in temperatures of zero or below. even the deep south will endure single digit or subzero temperatures. when will the brutal cold temperatures go away? here's meteorologist tom sater. >> martin, when will it end? everyone wants to know that. obviously not soon enough. when authorities in minneapolis say you get frostbite in five minutes. exposed skin in five minutes for this entire area. the brunt of this is going to be monday into tuesday. obviously it'll stick around for

the northern tier states, but when you have temperatures like this you want to know when can we go back to life? schools open again? businesses back to what they need to do? we'll see the effects hang around into tuesday afternoon, maybe wednesday morning in the deep south. but let's break this down because it's really critical to find out what we're going to be finding here. notice the temperatures in the departure from normal when you look at a high of 11 below in duluth and minus 32. that's the departure from normal. we will get back to normal, it's going to take awhile. minneapolis your average high is 24. you'll see 26 on friday. 29 this weekend. it'll be balmy again come this weekend. but as we get down into the midwest, notice the departure from normal. nashville, a 42-degree drop from what a average for you. then atlanta, 25 degrees. i think the brunt of this and really will be on tuesday. because as we look at the

forecast, again the high temperature in atlanta goes from 25 tuesday to 43. so monday into tuesday is pretty much the worst of it. obviously some areas have had snowfall. psychologically it makes it seem colder. that's going to hang around for a bit longer as well. hang in there. just a couple more days. >> thank you, tom. federal investigators are on the scene of a deadly plane crash in the rocky mountains. this is aspen, colorado. a small plane with three on board crashed and burned. the co-pilot was killed on the second attempt to land. the pilot and only passenger were hurt. i'm martin savidge. "march of the penguins" continues only here on cnn.

as winter descends, the tribe's only defense against the freezing cold is the group itself. it's almost as if they create another organism all together. the huddled animals form a single moving mass, one designed for the sole purpose of sustaining warmth. winter's first storm is upon them. ♪ ♪ >> within a few weeks, days begin to pass with virtually no light at all. moons come and go in the soon- to-be endless night.

and finally, one day in early june, we remember why they came here. ♪ ♪ >> as soon as the egg appears, it is instantly hidden from the cold. the tiny beating heart within the shell cannot stand more than a moment's exposure to the freezing air. ♪ ♪

>> from now on, the couple has but a single goal, keeping their egg alive. the hungry mother must return at once to the sea to eat, but before she leaves, she must entrust the egg to its father. some, young couples, perhaps are too impulsive or rushed, and within moments their affair comes to an end. they can only watch as the ice claims their egg and the life

within it. this couple's partnership is now over. the long march in vain. with no reason to stay, they will wander back to the sea. other couples have lost their egg as well. as for the others, the partnership is about to change. with unending patience, the pair rehearses the steps they will need to transfer the egg from the mother to the father.

they practice this clumsy ballet dozens of times, if need be. and then with great care, they will dance it. ♪ ♪ >> and now begins one of nature's most incredible and endearing role reversals. it is the penguin male who will tend the couple's single egg. while the mother feeds and gathers food to bring back for the newborn, it is the father

who will shield the egg from the violent winds and cold. he will make a nest for the egg atop his own claws, keeping it safe and warm beneath a flap of skin on his belly. and he will do this for more than two months. ♪ ♪ >> having passed the egg, the exhausted female must depart quickly. she must eat soon or she will

die. as the winter progresses, the father will be severely tested. the mother will be tested as well. her return trip to the sea is considerably more difficult than the original march to the nesting ground. it is colder now, and she will have lost almost a third of her body weight producing the egg. she is literally starving. of course, the fathers are nearly starving, too, but for them, a meal is far off in the distance. by the time their vigil atop the egg is over, the penguins fathers will have gone without food of any kind for over 125 days, and they will have endured one of the most violent and deadly winters on earth. all for the chick.

♪ ♪ as the fathers settle into

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as the fathers settle into their long wait at the breeding ground, the winter's second storm arrives. the temperature is now 80 degrees below zero, that's without taking into account the wind which can blow 100 miles an hour. though they can be aggressive during the rest of the year, at this time, the males are totally docile. a united and cooperative team. they brace against the storm by merging their thousands of bodies into a single mass. they will take turns, each of them getting to spend sometime near the center of the huddle where it's warmer.

>> as they move about, the fathers will balance their eggs like tight rope walks.

♪ ♪

>> the exhausted mothers have marched 70 miles. they are now back where they started three months ago, but they aren't anywhere near the water's edge. new ice has formed along the ocean's shore forcing them to walk several more miles before they reach the sea. food is actually only a few inches below them, but they have no way of getting to it here. to survive, they must reach the new ice edge or find some other opening. sometimes this search will last for days.

♪ ♪

♪ ♪

>> they can hold their breath for over 15 minutes and dive to a depth of 1700 feet. approaching the sea floor itself to feed on fish, krill, and squid. >> they will also skim along the ice just below the ocean's surface searching for any fish that may have lodged there.

while the mothers finally fill their empty bellies, the fathers cling to life on the surface trying to keep the eggs safe and warm. the wind will occasionally bring snow to quench the males' thirst. they have been without food now for over three months. each day brings them closer to exhaustion and starvation. eventually, some, usually the older ones will simply fall asleep and disappear.

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now it is dark almost all the time. and the mother of all blizzards is about to arrive. the fathers now make an extra effort to weld their bodies together and resist the winter's rage.

above them, the southern lights dance virtually around the clock. for now there is almost only night. ♪ ♪ >> the hungry mothers aren't the only ones overjoyed by their return to the sea. their predators, unfortunately, are happy to have them back as well. ♪ ♪

>> with the snap of its jaws, the leopard seal actually takes two lives. that of the trapped mother and that of her unborn chick who will never be fed.

by july the females know it is time to return to their nest. and so for the third time this year, the mothers take the long walk. only this time, they walk in the dark. across the country has brought me to the lovely city of boston. cheers. and seeing as it's such a historic city, i'm sure they'll appreciate that geico's been saving people money for over 75 years. oh... dear, i've dropped my tea into the boston harbor. huhh... i guess this party's over. geico. fifteen minutes could save you fifteen percent or more

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the ravenous and freezing night lingers, seemingly without end. until finally the darkness begins its slow retreat.

♪ ♪

>> after many months, life returns in earnest to the south pole, but only momentarily. and yet, it is enough. ♪ ♪ >> their victory over winter has begun. their efforts have not been in vain. ♪ ♪

>> though the light is returning, the winter is far from over. the worst is actually yet to come. ♪ ♪

>> no matter how cold it is or how hungry they are, the fathers must keep moving. if they don't, they will die. but then -- ♪ ♪

>> each day, more eggs will hatch. but this chick is hungry. he needs the food in his mother's belly. but his father is hungry too. he hasn't eaten in nearly four months now. if his mate doesn't arrive soon, he will be forced to abandon his child and return to the sea to feed himself. he will have no choice. but there is one secret weapon against his newborn's hunger. the father coughs up a milky substance.

despite his own hunger, this tiny meal has been relegated to a small crease in his throat just for this moment. this little banquet will keep the chick alive for a day, perhaps two. hopefully long enough for the mother to arrive. for some, it is already too late. ♪ ♪ >> the mothers step up their rhythm as they're sensing the

urgency. ♪ ♪ >> they shuffle along as quickly as possible, hauling their overstuffed bellies one last mile. and then at last, they're back.

>> to find each other in the enormous crowd, the penguins must rely on sound, not sight. as they circle, the returning mothers trumpet loudly and wait for their mates to call back.

>> the sound is deafening. and yet somehow each of them will hear their mate's song.

>> a couple has found one another. the mother sees her chick for the first time. and at last, the family is together. ♪ ♪ >> and just as they did with the egg, the parents now quickly pass off the newborn from one to the other.

>> now it is the mother's turn to protect her chick from the fierce cold. the father and his chick sing to one another, making sure each knows the other's voice. it is the only way the two will find each other when the father returns.

as the chick enjoys his first real meal, the father prepares to sever the bond between them. it's not easy to do. the fathers have gone without food for over four months. they will have lost as much as half their weight. but still they must walk for over 70 miles. this leg of the journey may be why there are fewer males than females. each year, some of these new fathers will not make it back to the sea. ♪ ♪

♪ ♪ ♪

like the sun, the chicks grow stronger every day. but they are not yet ready to leave their mothers.

♪ ♪

>> in time, after being perched atop their mother's feet for 1,000 paces, like a child learning to dance on her mother's shoes, the chick takes his first steps alone. ♪ ♪ ♪

>> we the wind's return, the temperature drops. this year, winter's going out with a bang.

>> this is the first some for the new chicks, and many of them will not survive it. ♪ ♪

>> when the winds stop, the search for lost chicks begins. some have kept warm by huddling together. others have not been so lucky.

the loss is unbearable. ♪

>> every year, some bereft mother will respond to her agony in an unimaginable way. having lost her own chick, she will attempt to steal another's. but the group will not allow it.

>> back in its mother's care, the chick is not eager to leave again. despite having known each other only a few days, the bond between mother and child is surprisingly strong. in the next few weeks, it will only grow stronger.

obviously it'll stick around for the northern tier states, but when you have temperatures like the co-pilot was killed on the second attempt to land. the pilot and only passenger were hurt. i'm martin savidge. "march of the penguins" continues only here on cnn.

winter's grip slowly weakens, and the chicks begin to run free. ♪ ♪ >> some need a little encouragement. but eventually, they all find their way. ♪ ♪

>> winter may have ended. but the dangers have not. ♪ ♪ ♪

it is late august now and time for the mothers to return and feed once more. for some, this development is unacceptable. but it is also nonnegotiable. ♪ ♪

>> because they are old enough now, the chicks are left alone for the first time. ♪ ♪ >> as spring arrives, the ice packs near the ocean's edge

begin to melt, shortening the distance between the sea and the breeding ground. it isn't long before the fathers return, their bellies heavy with food. the chicks will gather at once to meet them and sound their calls. the returning fathers will circle the excited newborns and listen. until he hears his chick's call.

some will never find their chick. their newborn will have died from cold or hunger or at the hands of some predator. but for those that do find their young, the reunion is a joyful one. and very quickly, the young chick's belly will be full again. for the next several months, the parents will take turns shuttling back and forth to the sea for food. ♪ ♪

>> and occasionally, the new family can actually spend some time together. ♪ ♪

>> by september, the ice has begun to thin and crack. the sea gets closer, allowing the parents to go back and forth more frequently. the chicks' new coat of feathers is now thick and full, enough to protect them on their own. and by november, the ocean is within a few hundred yards of the breeding ground.

as the ice melts, the brand new family prepares to go their separate ways.

the couples, locked for the past nine months in their ancient ritual of coming and going, will now part for the last time. and as their newest members look on, the tribe returns to their home at last. for the next three months, they will lavish in the rich and warmish waters of their short summer. they will feed and they will play, and in all likelihood, their chicks will never see them again.

they will remain here, alone, and unsupervised for a few more weeks, growing stronger. the ice continues to melt, returning the borrowed water to the sea. and beckoning the young penguins into the ocean as well. ♪ ♪

>> it is now december, and they are ready to leave the place where they were born. and although they have never known the ocean, nor touched it, they, like their parents, are of the sea. and so, one day, they'll take the plunge. and go home for the first time. ♪ ♪

>> for four years the chicks will live at sea. but as the sunlight begins to disappear at the end of their fifth year, and the warm days begin to cool, they, too, will climb out of the water and they will march just as they have done for centuries. ever since the emperor penguin decided to stay, to live, to love in the harshest place on earth. here i can just... you know, check my policy here, add a car, ah speak to customer service, check on a claim...you know, all with the ah, tap of my geico app. oh, that's so cool. well, i would disagree with you but, ah, that would make me a liar. no dude, you're on the jumbotron!

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for korean americans, according to the stereotype, anyway, it used to be that you grew up to be a doctor, a lawyer, an engineer. there were a specific set of rules and expectations. >> are you asking me to be in a porno? is that what you're asking me? >> thanks to some remarkably bad koreans, things are beginning to change. >> i went to one years of law school and walked out. >> so you're a bad korean. >> i'm a bad korean. >> any advice to someone about to marry a korean woman? the answer? don't do it! ♪ ♪ i took a walk through this beautiful world ♪