Doctor Who: The Wheel in Space (1968)

The Doctor (Patrick Troughton) and Jamie (Frazer Hines) arrive on a mysterious spacecraft whose only occupant is a dangerous Servo Robot (Freddy Foote)...The Doctor and Jamie are brought aboard the Wheel where Jamie is horrified to learn the crew plan to destroy the Silver Carrier with the TARDIS on board...The Cybermen instruct their human slaves to smuggle them onto the Wheel while the Doctor attempts to convince Bennett (Michael Turner) of the threat they pose...Jamie and Zoe (Wendy Padbury) attempt to recover the time vector generator while the Cybermen realise the Doctor is on the Wheel and make him their prime target...