Zombies of the Stratosphere (1952)

Martians come to Earth to build an Hbomb strong enough to blast Earth out of orbit so that Mars can be moved into its place in closer proximity to the sun Superscientist Larry Martin inventor of the first stratosphericflight spaceship as well as a jetpowered personal flying suit with helmet is called upon by the government to investigate rampedup UFO reports occasioned by the Martians spaceships The Martians meanwhile led by Marex engage a renegade earth scientist and a gaggle of gangsters to help them steal supplies operate a menacing robot and build their bomb This movie serial in 12 chapters was originally planned as a sequel to Radar Men From The Moon with Commando Cody as the hero but at the last moment the main characters names were changed and all other references to that serial removed from the script