Zombies of the Stratosphere

In this 1952 sci-fi serial, Martian invaders led by Marex plan to detonate a hydrogen bomb to blast Earth out of orbit so Mars can take its place. Inter-Planetary Patrol hero Larry Martin uses a rocket-powered flying suit to thwart the aliens and their traitorous human allies. Notable for featuring a young Leonard Nimoy as a Martian henchman, the film is a fast-paced pulp adventure.