Paco, Kathy and Robin set up an aquarium to surprise Miguel. Two scientists from different fields lead Robin to study bears in the Minnesota winter. They take samples of bear blood to aid human health problems, such as kidney dialysis.Film insert: Where there's water, there's life, as demonstrated in human blood vessels and kidneys.THE BLOODHOUND GANG: ""The Case of the Computer Caper, Part Four."" With the barest of clues, a restaurant's souvenir pen, the gang traces the man who stole the computer files.