When Major Robertson and other members of the Space Patrol are abducted by Manza, an invisible being from a solar system light years from Terra, Commander Buzz Corry and Cadet Happy race to the rescue. While Manza tortures Robbie in an effort to force him to blow up Buzz and Happy, the Space Patrol officers attempt to sneak into Manza's fortress and rescue their friend before he comes to harm. Meanwhile a squadron of Icarians trying to regain their homeland hovers above the planet as they prepare to bombard Manza's fortress with deadly heat rays. (thetvdb.com)