The Doctor, Yaz, Ryan, and Graham split up to investigate a missing astronaut in the Indian Ocean, birds behaving strangely in Peru and a U.S. naval officer who washes up on a Madagascan beach.

In the far future, the Doctor and her friends face a brutal battle across the farthest reaches of space to protect the last of the human race against the deadly Cybermen.

The Cybermen are on the march; as the last remaining humans are ruthlessly hunted down, Graham, Ryan and Yaz face a terrifying fight for survival.

While the Doctor is locked away in an alien prison, Yaz, Ryan and Graham discover a disturbing plan involving the Daleks.

Extended version; on Halloween, all across the universe, terrifying forces are stirring; from the Arctic Circle to deep space, an ancient evil is breaking free; in present day Liverpool, the life of Dan Lewis is about to change forever.

In the Crimean War, the Doctor discovers the British army fighting a brutal alien army of Sontarans, as Yaz and Dan are thrown deeper into a battle for survival.

Time begins to run wild; on a planet that shouldn't exist, in the aftermath of apocalypse, the Doctor, Dan, Yaz and Vinder face a battle to survive.

Devon, November 1967; a little girl has gone missing; Professor Eustacius Jericho conducts psychic experiments; and in the village graveyard, there is one gravestone too many.

As the forces of evil amass, the Doctor, Yaz and Dan face perilous journeys and seemingly insurmountable obstacles in their quest for survival.

The forces of darkness are in control; but when the monsters have won, there seems to be no one who can be counted upon to save the universe.

Sarah owns ELF storage and Nick visits his unit every year on New Year's Eve; this year, however, their night turns out to be a little different than planned as they join forces with the Doctor, Dan and Yaz in a fight against the Daleks.

The Doctor, refusing to face regeneration, teams up with his former self, a British army captain, and Bill Potts for an adventure.

As the New Year begins, a terrifying evil is stirring, from across the centuries of Earth's history; as the Doctor, Ryan, Graham and Yaz return home, they must try to overcome the threat to the planet.

As plague sweeps the country, the Doctor discovers a more exotic threat at work - shipwrecked Terileptil convicts, intent on making the planet their own.

Sarah owns ELF storage and Nick visits his unit every year on New Year's Eve; this year, however, their night turns out to be a little different than planned as they join forces with the Doctor, Dan and Yaz in a fight against the Daleks.

The TARDIS picks up a distress call and the Doctor and Sarah arrive on the planet Zeta Minor. There they discover that a Morestran geological expedition has fallen prey to an unseen killer and only the leader, Professor Sorenson, remains alive.

Telepathic beings control the spaceship.

The Sensorites fear human exploitation.

The Doctor, Amy, Rory and the TARDIS are in grave danger after following a Time Lord distress signal.

The Doctor and Sarah encounter Professor Sorenson who plans on transporting anti-matter.

The Doctor and Sarah arrive too late, and a ravenous monster emerges from Zeta Minor.

The Doctor and Sarah continue their efforts to stop the release of deadly anti-matter.

The Doctor realizes not only must he save the universe, but Sorenson, from himself.

When the TARDIS lands in the village of Devesham, the Doctor realizes that the local people are all android duplicates, and that they're not on Earth at all.

A mysterious woman who can't even remember her own name, falls from the sky.

The Tardis is captured by the Mandragora Helix. The doctor realizes the Mandragora energy is loose and enters an underground temple and reveals itself to the outlawed Brotherhood of Demnos.