The Space Academy is in danger of being closed down forever, so Tom Corbett and the Space Cadets risk their lives to save it when they come to the aid of passengers of a crippled rocket liner a million miles from home base.

Tom Corbett and the Space Cadets find treachery and danger on the deserted planets in the orbit of Jupiter.

Receiving an urgent distress signal from the black void of space, Tom Corbett and the cadets race to battle a dread disease which has ravished the colonial outpost of Mimas.

A feud between two cadets causes the wreck of the Commanders flagship during interplanetary war games. Tom, Astro, and Manning suddenly find themselves the target of deadly atomic torpedoes while taking part in maneuvers to repel a mock invasion from space. Cadets Manning and Eric Rattison (Sutton) tension builds when Eric is temporarily assigned as an extra member of the Polaris Crew. Past differences are insignificant when the two are trapped together fighting for survival and facing death.

In a daring maneuver, Tom Corbett and the Space Cadets use their spaceship to prevent the destruction of an important agricultural station.

A mysterious rocket ship drifts through the skies destroying liners in seemingly accidental crashes. When cadet Astro is accused of negligence, Tom steps into the picture.

A crooked mechanic tampers with the beacons surrounding a space junk field thereby hoping to waylay a treasury ship.

An airport is threatened with destruction when an explosion occurs aboard a spaceship in flight.

The cadets disguise themselves as prospectors to trap space gangsters who have been preying on uranium seekers.

Two pretty young auxiliary cadets make an emergency landing, causing their spaceship to crash-land on Jupiter through negligence.

A freighter Captain & his first mate do not properly maintain the antiquated vessels they purchase, the result is death for the passengers and crew of 5. The negligent Captain kidnaps Roger for his crew on another ill-fated vessel. Tom and Astro, posing as civilian passengers on the freighter, must rescue Roger and stop Captain Farley before the malfunctioning freighter crashes on the moon.

A tyrannical officer forbids the crew to leave their ship while in port.

Tom Corbett is called upon to halt sabotage of a cargo firing tube.

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A machine causes a cave-in under the moon's surface.

Liquid compound K has seeped into the air and threatens the lives of those on the space station. Conspirators then plant a nuclear bomb to blow up the space station and its crew.

Tom Corbett is expelled from the Space Academy on suspicion of treason.

Tom's spaceship runs into a speeding comet, and the crew is in danger of death.

On a routine training flight to Mars, Tom answers distress signal from the depths of space.

Tom, Astro and Roger are on escort duty for the speed trial of a new rocket scout manned by Commander Arkwright, Captain Strong, and Cadet Rattison. The rocket develops a short circuit in the main control panel that sends it off course to plunge directly into the sun. Only Tom Corbett and the space cadets are in a position to save the rocket as it falls out of control toward the sun.