When Victor goes away for the weekend, Lola offers to petsit Tank even though she knows how Tank and her pets simply don't get on. But when Tank disappears, panic ensues. Pat tracks down the clues and discovers that the Guanos have been using Tank to produce electricity for their television. Lola has also been looking for Tank, then suddenly Victor returns - his weekend has been canceled and he wants to see his dog. Our hero has to save his favorite foe and return him safely to his owner.