Cow brings home an ""invisible"" dog, whom she dubs, Kevin. Pretty soon, she and Kevin are inseperable, but causes trouble with school and friends. After she enters Kevin in a dog show, and wins, Kevin ""runs away"". Afterwards, Cow finds Kevin, befriended an ""invisible"" homeless man.
Elenco: Charlie Adler , Candi Milo , Dee Bradley Baker , Dan Castellaneta , Howard Morris , Michael Dorn .