Tom, Ben, Kate, and Anita fight for their lives when they are captured by the evil industrialist, David Luna, and imprisoned in his massive space fortress. Luna is desperate for the secret of the stardrive that Tom has developed which makes it possible to travel from one galaxy to another in a matter of minutes.

When Luna tries to force the stardrive into operation, an accident occurs--hurtling them deep into unknown space. They come upon a dark, swampy planet infested with strange and dangerous beasts. It is up to Tom to save them all from the planet and its deadly inhabitants!