Boomer and an 11-old-year boy liberate a warehouse full of caged canines held captive by a dog-napper. Boomer and a young boy team up for action and adventure in a daring attempt to outsmart greedy dog-nappers. A bunch of crooks steal dogs for research purposes. And even Boomer has his turn. But with the help of a young boy, he outwits the crooks, and frees all the stolen dogs.
Miss Heston, a shifty old woman, lures dogs with her kindness and then sells them for profit. Boomer is lured into Miss Heston's trap but he escapes and decides to put a stop to her activities.