Dodo uses hypnosis to help Eugene overcome his fear of mice. The session works well - in fact, a little too well and Eugene becomes convinced that he is, in fact, a mouse. / Lyle, Gnu, Dodo, and Tito the chameleon are smitten with spring fever and go all-out in their attempts to woo Lana. Dodo, meanwhile, suffering from amnesia, sweeps through the preserve as a mysterious, masked romancer.