While showing a new companion around the TARDIS, the Fifth Doctor discovers that the ship seems determined to drive its occupants away.
The Fifth Doctor investigates a strange plague linked to forgotten Cuddlesome toys, which are waking up with deadly intentions.
The Doctor and Nyssa return to Vortis and discover a hidden menace in the Desolation threatening the City of Light.
After his regeneration, the Fifth Doctor and his companions explore an unsettling world, where the TARDIS is stolen and the travellers face a personal threat.
The Doctor, Tegan, Nyssa and Adric investigate a deserted house on Fleming’s Island after a cult vanished inside it.
Leela and the Fifth Doctor pursue Abby and Zara into a storm in time and reach a seemingly idyllic garden city whose happiness hides a terrible cost.
On the Moon, the Fifth Doctor and Zara discover an alien threat among early settlers, including Sontarans who refuse to fight.
Abby and Zara’s powers are damaging reality and letting monstrous creatures through. The Doctor faces a terrible choice about his friends.
The Fifth Doctor and his companions arrive at the Welkin Sanatorium on Soresia, where decay has overtaken the patients and the resort.
Aboard the RMS Oceanic, the Doctor and his friends help journalist Nellie Bly complete her journey around the world despite a saboteur.
Nightmares of Daleks stalk a drilling rig on planet XB93, until the Fifth Doctor arrives to investigate.
The Fifth Doctor, Nyssa and Tegan encounter survivors of an expedition to Telos as a Cyberman threat follows them home. The Doctor also finds himself moving unexpectedly through his own timeline.
The Fifth Doctor, Nyssa, Tegan and Adric arrive in ninth-century Iceland, where a Viking settlement has found something in the ice. Soon they face the Ice Warriors.
A UNIT exercise in Snowdonia goes wrong when its simulated aliens prove to be real. A temporal disturbance draws the Fifth Doctor, Tegan and Turlough into the danger.
While the TARDIS resets, the Fifth Doctor, Nyssa and Tegan visit a mining planet to find an alien friend. He is missing, and the locals are hostile.
In a French village near the Maginot Line in 1936, Nyssa is an artist, Tegan runs an inn and the Doctor arrives as a detective with a mystery to solve.
The Doctor, Nyssa and Tegan witness the historic mission of a medical-supply spaceship pursued across a war zone, but events may not unfold as history records.
The TARDIS lands beneath a Warsaw club in 1982. After helping a band through a gig, the Doctor, Nyssa and Tegan find that strange black cars are taking people from the streets.
In wartime St Andrews, a murder follows a gathering of mystery enthusiasts called the Merfolk. The Doctor and his companions investigate before the killer strikes again.
The Doctor, Tegan, Nyssa and Adric challenge a corporate retreat exploiting a protected region of space, only to become trapped in nightmares shaped by their own minds.
The Fifth Doctor is sentenced to a remote prison after an intergalactic war, where a terrifying fate awaits those who remain too long.
The TARDIS becomes stranded in the realm of Morning, where a lamp containing the dangerous substance Hooklight has been found. The Doctor and his scattered companions begin a quest to the Dark Forge.
The Fifth Doctor and his companions remain separated across Morning. As they race toward the Dark Forge, the Doctor follows a plan devised by a mysterious Oracle.
In a strangely prosperous English village in 1951, the Fifth Doctor, Tegan and Turlough uncover the Asteri: crystalline beings that grant wishes while feeding on their victims.
A malfunctioning amusement-park planet traps the Doctor, Tegan and Turlough in a time loop. Only Tegan remembers each cycle and must find a way to escape.
The TARDIS lands in an altered London in 1980, where the company Luqos rules through promises of miraculous gifts. The Doctor, Tegan and Turlough pursue the truth.
In 1980s Devon, the Doctor and Nyssa investigate an attack involving a car and a new sentient gadget called the Miri Cube, which hides an alien plan for conquest.
On a distant world, the Doctor and Nyssa meet a people who worship a giant protector. The Colossus proves real, and an off-worlder hopes to exploit it.