Tom watches and studies films of some of his earlier encounters with Jerry, much like game films; he runs them backwards and stops them so he can study them more closely, all the while scribbling notes. Jerry pulls up a box of popcorn and watches, too. Tom notices Jerry and chases him into his hole. Tom designs a better mousetrap, but Jerry alters the plans, so it doesn't work any better than it did the first time the footage was used, in Designs on Jerry (1955).
No cast listed.