The player assumes the role of the prisoner, and the game involves visiting and destroying a series of bases on different planets.

Trill, the main character, is judged guilty (indicted for a crime he did not commit) and ordered in a space cryogenic prison for 250 years.

In the corner of his cell, which had doubled as a store-room, the prisoner finds a "briefcase computer" which gives him control over a group of four droids on a space ship.

Controlled by the prisoner/player, the droids are firstly found in a spaceship in distant space (an interface using vector graphics), until ordered to land with a capsule on a planet.

On each planet, the droids have to first locate the entrance to the base, then enter and explore 'dungeons' containing various puzzles and alien and robotic enemies.

A fully completed mission consists of ten bases followed by the space station; there is a room in the space station which houses Trill, and if the droids enter this room, the game gives the player the choice of freeing him and ending the game completely, or allowing the enemy to recapture him, starting another mission.

However, the gameworld is well designed, the plot and the opponents are imaginative and the puzzles are challenging with many thrills and spills to keep you on the edge of your chair.