Marvin the Martian is monitoring through his telescope a rocket launch on Earth. The rocket heads straight for him and lands on Mars. The only occupant is Bugs Bunny, lured into Cape Canaveral by a carrot and sent to Mars as an expendable "astro-rabbit". Bugs is to claim Mars in the name of the Earth, but Marvin won't allow an Earth creature to contaminate his atmosphere. He trains a time-projector gun on Bugs and reverts the bunny to a Neanderthal Rabbit, who crushes Marvin with one hand.
Unfortunately the movie Mad as a Mars Hare is not yet available on HBO Max.
| Sound | William Lava | Original Music Composer |
| Writing | John W. Dunn | Story |
| Visual Effects | Bob Bransford | Animation |
| Directing | Chuck Jones | Director |
| Visual Effects | Ken Harris | Animation |
| Visual Effects | Tom Ray | Animation |
| Directing | Maurice Noble | Co-Director |
| Editing | Treg Brown | Editor |
