Zombies of the Stratosphere

12-chapter science fiction action serial from Republic Pictures and director Fred C. Brannon features a Martian invasion party, including Marex (Lane Bradford) and Narab (Leonard Nimoy), with a plot to detonate H-bombs powerful enough to knock Earth from its orbit, after which Mars will be moved into its place, strengthening the Martian atmosphere and allowing life to flourish there once again. It's up to Larry Martin (Judd Holdren), equipped with his incredible rocket suit, and his compatriots to stop the Martian menace and their earthly criminal henchmen.

Original planned as another Commando Cody offering, for some unexplained reason Republic changed the lead character's name to Larry Martin at the last moment, despite leaving the supporting cast, not to mention the rocket suit, the same. The filmmakers relied heavily on stock footage, and re-used a lot of action scenes and effects shots from earlier serials and movies. There are a lot of fist fights, plus a killer robot. This particular serial gets mentioned now chiefly for being the first screen performance by Leonard Nimoy. The future Spock was already playing an alien, only this time not one nearly as cool as the Vulcan.