Miguel discovers a leak in the water pipes and tries valiantly to fix it. Kathy discusses Lake Mead and Hoover Dam, which supply water and electricity for Las Vegas. Robin and Jackie examine the Grand Canyon from two different angles.Film insert: Tracing the New York City water system.ANIMATION: The creation of the Grand Canyon.THE BLOODHOUND GANG: ""The Case of the Computer Caper, Part Three."" Vikki discovers that the woman who poured water in the trash can, is left-handed. Looking closer at the pictures, Ricardo realizes that the money – wrapped in plastic – froze to the bottom of the trash barrel. Back at the park, the gang is surprised to hear from a hot dog vendor that the ""lady"" came back for the trash can. In truth, the culprit is a man. (Concludes in next episode.)