Stories for younger viewers. Martin Freeman tells the story of a dog called Roo, who goes on a trip across America in search of his long-lost grandfather. Roo and his owner travel by Greyhound bus and visit a dog track, a rabbit-themed theme park and the Grand Canyon. In a series of bizarre incidents, they befriend a duck and Roo becomes the sheriff of a Wild West town. These adventures bring them no closer to Roo's missing grandfather, however, until one snowy day they find themselves in the depths of the woods.