Those crazy mice Hubie & Bertie are at it again with Claude. This time the mice see that Claude is seriously ill, so they give him an operation.
| Production | Edward Selzer | Producer |
| Sound | Carl W. Stalling | Music |
| Directing | Chuck Jones | Director |
| Writing | Michael Maltese | Story |
| Editing | Treg Brown | Editor |
| Sound | Treg Brown | Sound Effects Editor |
| Directing | Robert Gribbroek | Layout |
| Art | Philip DeGuard | Background Designer |
| Visual Effects | Ken Harris | Animation |
| Visual Effects | Phil Monroe | Animation |
