When married British women Rose Arbuthnot and Lottie Wilkins decide to take a break from their respective spouses, they stay at a castle in Italy for a quiet holiday. Joining the ladies is Caroline Dester, a young socialite, and Mrs. Fisher, an older aristocrat. Liberated from their daily routines, the four women ease into life in rural Italy, and each finds herself transformed by the experience.

A freak accident leaves two dangerously unstable spacecraft locked together, and a horde of monsters unleashed on their passengers.

Cymbeline, the King of Britain, is angry that his daughter Imogen has chosen a poor (but worthy) man for her husband. So he banishes Posthumus, who goes to fight for Rome. Imogen (dressed as a boy) goes in search of her husband, who meanwhile has boasted to his pal Iachimo that Imogen would never betray him. And Iachimo's determined to prove him wrong.

When the TARDIS lands in a quarry on Earth, Sarah unearths what appears to be a fossilised hand, buried in one-hundred-fifty-million-year-old strata. Analysis shows the hand to be silicon-based and inert, but when Sarah begins to act as if possessed, the Doctor suspects that it may still be alive...

The Rani has returned with another malicious scientific scheme. Taking advantage of the post-regenerative trauma the recently regenerated and unstable Doctor is going through, she hopes to achieve control of an approaching asteroid composed entirely of strange matter. Can the Doctor figure out he is being used for the Rani's evil experiment, and what is behind the door the Rani won't allow him past?