[ music firefighters try to back away from a wall of flames. >> it just gets incredibly scary to watch. >> what happens when they run out of room to run. an elephant gives a thunderous warning to some wild dogs. >> see the baby in the middle of one epic battle. hikers realize they're smack in the path of danger. what broke loose that nearly wiped them out. and here's the masked man behind a crazy youtube channel where he's dedicated to licking weird things. now the licking guy explains why his odd obsession has some hard and fast rules.

i always carry some mouthwash. absolutely heart stopping footage has just hit the web, giving real insight into the day-to-day intense world of firefighters' work. the incident happened in november in australia. five crews are heading to a small town with one mission. they have to protect property because there's a firestorm heading their way. but as they're on the way, they never make it there, because the winds shift, causing what can only be described as a wall of fire. and the first indicator they get is that day turns to night. this is where it just gets incredibly scary to watch. out of that darkness emerges the monster. as a huge wall of flame comes out of e.

and then comes an intense, scary, three minutes when they were trapped inside, the fire engines are surrounded by the burning fires of hell. it gets even chief sends out a may day. two crew members were outside that fire engine. they had gotten out to turn on some water pumps. they are trapped outside and he had no idea where they were. >> it was massive and it was coming at them incredibly fast. >> they're using this as a warning, saying when we give you a warning to leave, leave immediately. with this video, with everything you've just seen and heard, not one single injury. >> intense for these people. >> it really just show the minute to minute life or death world these guys live in every

as you can see, this proves tempting for these wild dogs. theants get a little upset when the dogs get too close. >> i love the sound of an angry elephant, they're the beast of the world. i love it. >> and those wild dogs, they still try to pursue, even though they get chased, they keep going. >> they have numbers on their side. dogs have numbers, and that is in their favor big time. >> you don't see the pack in full. they're behind the and the wild dogs aren't very aware of it yet. you see right about here, one reveals itself in the bushes. those elephants in the bushes, yet. the dogs are like, we're hungry, there's a baby, it's like blood in the water. they're still going to make an attempt, because they think they have the elephants outnumbered.

elephants that come to assist. >> and you see them helping that baby up that bank. that little one couldn't have gotten up there by itself. >> these dogs don't want to mess with these big boys here. these hikers are on a three-day trip through the park in argentineargentina. you can see the guys helping some of the hikers get over to the other side of a small stream of rushing water. they notice that something changes dramatically. their expertise helps them recognize the changing sounds in their environment. >> whoa! >> oh, man.

>> that's crazy. >> a massive avalanche right in their direction. they escaped in a matter of seconds. >> no doubt they would have been killed. that's not just water. that's rock and boulders and debris. >> that's why these guys are saying it's so important that if you are out there, you have to be aware of this conditions. the snow is rushing down the mountain at very high speeds carrying with it mud, rocks, and putting hikers' life in danger. they're saying if you're going out here, try to have an experienced guide with you and do not hike like so many of us do with ear buds in our ears listening to music, because the sound is going to be the first tell-tale sign of an on coming avalanche. >> thank goodness they had the guides.

fine with a big old scare. this video looks like it's up high off the road. that's right, you're traveling in a lorien lorrie or a truck as we like to call them. >> it looks like it stops short of the house but right through the stone fencing of that garden there. let's break it down and watch it again, what happens here. well, this van is pulled over to the side. that causes the to slow down, because it knows there is not a lot of room between that van and the oncoming truck. the person isn't expecting that black car to slow down. then bang. >> there's a lot of explaining to the insurance company, i hit that car, that truck, and oh, that person's house. >> thankfully no one was injured. in the second juken vio, you

a giant log truck. every time i see one of these, i tense up. >> this show makes me nervous, if i see that i slow down or speed up. >> thank goodness there's a guardrail there. >> oh! >> oh, man. >> did somebody call for firewood? >> it's like "final destination 2." >> that's a big old mess. thank goodness, though, the truck tipped to the right, off the road, and wasn't going around a right-hander which might have caused a giant load of logs to go into oncoming traffic. >> is the driver okay? >> it doesn't look like a heavy impact, just kind of folded slowly on its side. >> there's going to be a sale on

a dog is man's best friend. >> like this dog who seems to be very connected to its owners. >> find out what has this cutie wagging its tail. and the folks at viability have a new use for drones. >> these drones save lives. the genius methods that can make a huge difference. to treat their aches and pains more people reach for advil. relief doesn't get any better than this. advil. now you can create your own tour of italy from olive garden's most mouthwatering dishes, starting at $12.99. choose 3 of 10 classic favorites to enjoy on one plate. like our delicious new shrimp ravioli with lobster alfredo, a filled pasta like irresistible tortellini al forno, and a classic like creamy fettuccini alfredo. plus unlimited salad and freshly baked breadsti because the best tour of italy is the one you create.

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