Inspired by a tango film, Lisa signs up for dance lessons but the teacher, ex-child star Vicki Valentine, specializes in tap, at which Ralph is surprisingly good but Lisa hopeless. Professor Frink gives her a pair of self-dancing shoes but they go out of control and Lisa has to be tripped up by Homer to disable them. Bart and Milhouse, meanwhile, go camping in the shopping mall, thwarting Wiggum's attempts to flush them out with a puma.
—don @ minifie-1