Another adventure for everyone's favourite time-traveller. The Doctor (Tom Baker), Romana and K9 find themselves suspected of being drug smugglers when they arrive on the Empress, a luxury liner. The Empress has become merged with another craft, the Hecate, after colliding during a hyperspace jump. Somebody on board the Empress is smuggling Vraxoin, a deadly addictive drug, and matters are complicated still further when the Mandrells, a race of monsters being transported from the planet Eden, are let loose on board the ship.

A double helping from the 'Doctor Who' archives. Never aired on television due to a strike in 1979, the uncompleted six-part adventure 'Shada' traces the chase to recover a powerful book, 'The Artifacts of Gallifrey', stolen from retired timelord Professor Chronotis (Denis Carey). Skagra (Christopher Neame) is the evil despot responsible for this foul jiggery-pokery. Original footage from this episode was used as the Fourth Doctor's involvement in 'The Five Doctors', before it was reassembled, with an older and portlier Tom Baker narrating the missing gaps. Also included is the BBC-produced documentary 'More Than Thirty Years in the Tardis', a compilation of clips spanning the first thirty years of the Doctor, including some previously unseen footage, plus interviews with the many stars, writers, producers and designers.