This video is not available to watch in your region.
Episode 5
For Barney's birthday, the Walshes visit Niagara Falls and Lake Placid on their way to Vermont. After taking on a frozen rock face, they jump into sleds with some four-legged pals.
Thursday, 19th May 8.30pm
Brad and Barney head straight for Dayton - the home of aviation. After recreating history in the Wright B Flyer, they attend a local rodeo, but are they just... 23mins
For Barney's birthday, the Walshes visit Niagara Falls and Lake Placid on their way to Vermont. After taking on a frozen rock face, they jump into sleds with... 23mins
On the final leg of their trip, Brad and Barney take rally cars for a spin on ice, get some wilderness training with expert Joel Graves, and go lobster... 23mins