A boy and his dog have a pet frog, and the frog lives in frog luxury, with its own toy boat and a little frog-sized platform for diving into the wading pool. Still, it persists in behaving like a frog. When the boy and dog find their pet is gone, they set out to find the frog. At the end, the frog meets other frogs, and the boy and the dog find the frog among its frog friends and learn to accept that the frog is happiest in its own environment. Based on a book by Mercer Mayer.