Classic Doctor Who: The Fourth Doctor

Sarah is attacked by a Zygon disguised as Harry who is a prisoner on the Zygon spaceship.

The Doctor and Sarah find their way into the Zygon spaceship at the bottom of Loch Ness.

Broton, the Zygon warlord intends to use the Skarasen to attack London.

The TARDIS takes the Doctor and Sarah to Zeta Minor on the edge of the universe.

The Doctor and Sarah are held responsible for the deaths on Zeta Minor.

In the universe of antimatter, the Doctor communes with the creature and makes a bargain.

On board the Morestran ship, the Doctor and Sarah are hemmed in by anti-men!

The Doctor and Sarah discover that an ancient and powerful evil is manifesting on Earth.

The Doctor, Sarah and Laurence Scarman are being hunted down by Sutekh's robot mummies.

The mummies are building a rocket to fire at the pyramid on Mars and release Sutekh.

Inside the pyramid on Mars, the Doctor and Sarah must prevent Sutekh's release.

The TARDIS arrives back on Earth but all is not as it seems.

The Doctor discovers the truth behind the village and its robot population.

The Kraals intend to invade Earth by stowing away aboard Crayford’s rocket as it returns home.

The Doctor and Sarah are desperate to warn UNIT of the Kraal’s invasion, but nobody will believe them.

The Doctor and Sarah take shelter in the castle of Dr Solon on the planet Karn.

The Doctor is a prisoner of the Sisterhood of Karn who plan to burn him at the stake.

Morbius demands that Solon install his brain in a new body.

The Doctor challenges Morbius to a mental duel in which only one of them will survive.

The Doctor learns of the discovery of two alien seed pods in the Antarctic.

The Krynoid is on the loose in the arctic.

The Doctor and Sarah track down the remaining Krynoid pod.

Keeler has been infected by the alien pod and is transforming into a Krynoid.

The Krynoid demands that the Doctor be surrendered to it.

The Doctor, Sarah and Scorby are hunted down by the mad Harrison Chase.