When the TARDIS rematerialises inside a rocket the Doctor and Jamie are alarmed by the presence of a hostile Servo-Robot. They discover that the rocket is drifting in the orbit of a giant space station - the Wheel in Space.
Once inside this...
Sten’s luck seems to have deserted him. Having been assigned a tacdivision in the Fringe Worlds, he soon discovers that the Imperial Officers are more interested in having fun than honing their fighting skills. The enemy Tahn couldn’t have...