Roger, Anita, and their canine Clan are packing for the big move to Dalmatian Plantation, a home in the country with plenty of room for the 101 pups and far from the clutches of Cruella de Vil. The feistiest pup, Patch, feels lost in a sea of spots and longs to be a one-of-a-kind wonder dog like his TV hero, Thunderbolt. While watching the Thunderbolt Adventure Hour, Patch hears about a chance to appear on the show while it is filming in London. However, the family move will interfere with Patch's opportunity - until he's accidentally left behind in the commotion. Patch heads for the audition to meet his hero and win a guest spot on the show, but is laughed off stage for his squeaky bark.