The Jackson brothers start a 15,000 mile adventure from Alaska down to the southern tip of Chile on a journey to ride mountains on the top and bottom of the Americas.

Pro snowboarders John and Eric Jackson hit the end of the road in Alaska as they catch some icy waves along with Travis Rice and big wave surfer Ian Walsh.

John and Eric strap their boards to their back and hike up Dante's Peak for and epic descent.

Still in Mexico, the guys are joined by legendary surfer Bruce Irons.

John and Eric pass through Honduras and into Nicaragua where they meet up with Travis Rice.

John receives the dreadful news that his knee will require surgery.