The Doctor gives the box to Ky, revealing the contents to be scrolls written in the language of the Old Ones.

The Doctor and Sondergaard make a discovery in the caves of Solos while Jo falls into the Marshal's trap.

The further adventures of the time-traveling alien adventurer and his companions.

On Gallifrey the Doctor stands trial for his life on charges of interfering in galactic affairs; with Colin Baker.

A mysterious traveler can visit any point in space and time.

With the black light converter destroyed, the Doctor fears for the planet's safety and needs to find the Secrets of the Sleepers and discover why they are there in the first place.

The Doctor is foxed by Drathro's logic so it takes Glitz's blunt lies to buy them some time until Ravolox can be saved. Meanwhile, the Tribe make a foolhardy attack on Marb Arch.

The Doctor and Peri encounter a brain surgeon whose experiments have led to horrible mutations.

Crozier is looking for another body to house Kiv's brain.

The Doctor's memory is apparently affected by Crozier's experiments.

Film shows the Doctor's past.

The Doctor tries to prove his innocence.

A mysterious traveler can visit any point in space and time.

The Doctor begins his defense, as he investigates deaths on a spaceship and tries to prevent its destruction; with Colin Baker.

The Doctor and Jo are once again sent into danger by the Time Lords when they are given a vital message capsule to deliver.

The Marshal is on trial, with the Doctor as chief witness; Jo and the Doctor's friends are the Marshal's prisoners.

The Doctor discovers murderous robot Kandy Man and his happiness patrol oppressing Terra Alpha residents. With Sylvester McCoy.