Doctor Who, Harry and Susan accidentally land on an artificial satellite where they discover people from Earth suspended in a frozen state. The bad news is that they also find a dead insect, the queen of the Wirrn, sworn enemies of Earth. The Wirrn's egg sac is full, so the good Doctor must destroy the larvae before they absorb the last of the human race.

In a story co-written by Hitchhiker's Guide's Douglas Adams, the Doctor and Romana take a holiday in Paris where they unravel a mystery involving six original Mona Lisas!

The Doctor and Romana decide to forego Brighton beach and take a much-needed holiday on the pleasure planet of Argolis. Ravaged decades before by an interstellar war, Argolis now hosts the Leisure Hive - an ideal retreat for tourists from all over.

A freak accident traps Sarah Jane under tons of rocks. After a miraculous survival, she emerges holding a stone hand that has a strange and sinister power.

The Doctor and Andric head to Earth to fix the TARDIS's chameleon circuit. Once there they face danger involving a newly regenerated Master and a feisty young air named Tegan.

Transmitting down from Nerva Beacon, the Doctor, Sarah Jane and Harry find themselves on Earth in the far future, long since abandoned by the human race. Soon it becomes clear that they are not alone: a shipwrecked crew of human astronauts are being hunted down, one by one. What is the creature that lives in the rocks, and what is the purpose of the lethal tests it is conducting? Can the Doctor ensure the safety of the Earth for the future generations...

The Doctor and Sarah Jane answer an intergalactic distress call that takes them to a far-flung planet, Zeta Minor, at the edge of the known universe. Arriving at the same time as a rescue team, they search for survivors of an earlier expedition. But will anyone be allowed to leave the planet alive?

The Doctor is behaving very oddly. After signing a treaty with enemy aliens, he returns to his home planet, Gallifrey, and demands the Presidency of the High Council of Time Lords. His first act of rule is to banish Leela to the wastelands on pain of death. His second is to sabotage the planet's defense barriers, enabling full scale invasion. Why has the Doctor joined forces with the militaristic Vardans? Is he out for revenge against the Time Lords?...

"A sonic scan draws the TARDIS to the Fetch Priory on Earth. There the Doctor and Leela discover an impossibly old human skull that is the key to a nightmare from the Time Lords' past. A murderous monster stalks the priory grounds, and within, someone is intent on unleashing a malevolent creature that feeds on death itself"--Container.

The last stretch of the quest for the Key to Time brings the Doctor and Romana to the planet Atrios in the last days of a nuclear war with its neighboring planet Zeos.