A rabbit is told by his mother to watch out for his baby brother Elmer while she's out of the house, but a wolf has other plans for Elmer after he hears the older brother sing "My Green Fedora."
| Directing | Friz Freleng | Director |
| Writing | Robert Clampett | Writer |
| Production | Leon Schlesinger | Producer |
| Sound | Bernard B. Brown | Original Music Composer |
| Sound | Norman Spencer | Original Music Composer |
| Visual Effects | Robert Clampett | Animation |
| Visual Effects | Chuck Jones | Animation |
| Sound | Bernard B. Brown | Sound |