A bullying director is kidnapped by Martians using the science fiction movie he's filming as a cover. They're forced to land because of a malfunction, and explain that they'll have to let him go...if one of the actors or crew that he abused tries to rescue him.
Gullivar Jones series ends with this issue and the letters section provides a profile page of all the creators who were involved in the series. Includes an ad for Monster Madness #1.