. >> the scott ex longes unsupported jouey in the antarctica. they are going to travel about 1800 miles. it has never been done before. here is ben inside to test. >> it is cold and windy and pretty hard work. it has been a heck of a climb getting up here. we think it is going to flatten out pretty shortly, in the next day or two. so we're on track. >> i didn't even take into account they might have to go up hill both ways in the snow. >> some of their toughest work. in four months, they will change their underwear three times. also, in four months, they will not experience darkness at all, because they are in the antarctic. they blog every day. very interesting blog to keep up with. hopefully, they get back safe. >>> this time of year, americans spend billions on their pets and their pets want to say, you know what, merry christmas to you too. >> these animals are just saying, you know, merry christmas by reenacting their version of clement moore's "'twas the night before christmas." >> and all through the house, not a creature was stirring, no