While playing sandlot baseball, Dog is a superstar, but Cat is humiliated. Dog tries to cheer up Cat with the story of Murray The Mule Marconi, who played badly as a kid, but ended up in the sandlot baseball Hall of Fame. Cat has a different idea: he'll wear a Dog mask and Dog will wear a Cat mask. The plan works for a time, but the brazen Cat tears off the mask at one point to prove he can do it himself -- then strikes out. The Mule shows up in person and tells Cat that he should take up bowling.SKIING: CatDog go on their very first ski run, causing havoc and mayhem on the slopes.DOG ATE IT: Cat and Dog practice their cha-cha moves for the upcoming Nearburg Dance Fiesta, but is not as light on his feet due to Dog's recent weight gain. Cat forces Dog to diet with Choco-Slim diet food, adominizer belts, and various exercises with no results. When Cat threatens to cancel their dancing, Dog starves himself and works out obsessively. At the dance, Dog is tempted by anything remotely edible, and goes crazy eating the food, the walls, even the band. CatDog is awarded first prize for the most original dance, but Dog eats the trophy.