Doctor Who

During a clandestine meeting on Gallifrey, the Doctor is chosen to be a part of a terrible act; the Doctor and Nyssa trace something odd to Amsterdam.

Commander Maxil doesn't believe the Doctor is innocent; he thinks that the easiest way to stop the evil from being reborn on Gallifrey would be to kill him before the bonding can occur.

President Borusa thinks the creature has been defeated; within the Matrix, the Doctor unmasks Omega and realizes the threat is far from over.

Omega has been reborn in Amsterdam, but as a walking anti-matter bomb; the Doctor pursues him through the city.

While under the influence of the evil Mara, Tegan redirects the Tardis to the Mara's former home planet.

The Doctor begins to unravel the legend of the Little Mind's Eye crystal; Tegan remains under the Mara's control as it attempts to regain its hold over the planet Manussa.

Chela takes the Doctor's fears seriously and tells him the snake dancer Dojjen can aid him in defeating the Mara.

The Doctor and the original snake dancer Dojjen work to rid the planet of the malign Mara once and for all, but it has the whole of Manussa in its psychic grip now.

The Tardis lands on an apparently deserted spaceship orbiting the Earth in 1983.

In 1977, Tegan and Nyssa think the decaying body they've discovered is the Doctor's.

Both the '77 and '83 Brigadiers exist in the same time zone, and their meeting could cause a temporal catastrophe.

Mawdryn blackmails the Doctor into agreeing to surrender his eight remaining lives to release the mutants.

Turlough's attempt to destroy the TARDIS causes the ship to attach itself to a nearby space liner.

The ship's passengers are discovered to be space lepers being transported to Terminus for radiation therapy.

Nyssa contracts the dreaded space leprosy.

The Doctor enlists the aid of the Garm in averting the Second Big Bang.

The Tardis materializes on what appears to be an Edwardian racing yacht.

Turlough tries to commit suicide to escape the influence of the Black Guardian.

The Doctor discovers that the captain of the pirate ship is actually a concentrated beam of mental energy.

The Doctor manages to eject Wrack and pilot her vessel to victory.

The Tardis interrupts a jousting match in 13th-century England with King John in attendance.

The Doctor discovers that the Master has replaced the king with an imposter to thwart the signing of the Magna Carta.

The fourth Doctor is trapped in the Time Scoop, leaving the fifth Doctor to rescue their three previous incarnations trapped in Gallifrey's Death Zone.