A young conservative black man, minding his own business, rides a nearly empty subway car. The only other passenger, a blonde vixen looking for trouble, sizes him up. Sexual tension, racial bigotry and righteous fury collide in a razor's edge confrontation between this unlikely pair.

A huge chemical company pays illegal dumpers for disposal of chemical waste dangerous to the environment.

UNIT is providing security cover at an experimental drilling project at Eastchester, designed to penetrate the Earth's crust and release a previously untapped source of energy. Soon, however, the drill head starts to leak an oily green liquid that transforms those who touch it into vicious primeval creatures with a craving for heat. The Doctor is accidentally transported "sideways in time" by the partially repaired TARDIS control console into a parallel universe where the drilling project is at a more advanced stage. Thwarted by his friends' ruthless alter egos, he works to save both universes.

During World War II, during a misty morning, near a fishermen's village, four children come across two RAF pilots ejected from a plane that crashed in the sea.

An adaptation of the novel by Penelope Lively. The plot revolves around the ghosts of plague victims in a sleepy wood.