A baby elephant rolls off the circus train and right into Tom's bed. He quickly allies himself with Jerry, and with a rolled-up trunk and some paint, passes himself off as a giant mouse. The two then keep trading places to the bafflement of Tom.
| Art | Robert Gentle | Background Designer |
| Visual Effects | Irven Spence | Animation |
| Visual Effects | Kenneth Muse | Animation |
| Production | Fred Quimby | Producer |
| Directing | Joseph Barbera | Director |
| Directing | William Hanna | Director |
| Visual Effects | Ed Barge | Animation |
| Sound | Scott Bradley | Original Music Composer |
