Mota arrives on Earth from Mars, and takes into confidence manufacturer Bryant (a one time Nazi sympathizer) to launch a wave of destruction that will overwhelm Earth and put the planet under a Martian supreme dictator. Aerial patrolman Kent Fowler sees the theft going around Bryant’s plant (by his two henchmen Drake and Ryan) and goes to stop the sabotage despite that his employer Bryant is the real criminal. Eventually Mota and Bryant develop their weapons to such a degree that they are able to start their campaign of destruction, unless Kent can stop them. Republic really threw in generous amounts of stock footage (I counted at least 4 different serials) to help overcome this corny script. The acting is pretty much wooden (even with veterans like Reed, Craven, and Lauter) and Gregory Gay makes for one of Republic’s worst and most laughable villains. It’s still entertaining enough, but pretty much an egg.