6 episodes · 1979

In an old house filled with old antiques, a nursery rhyme ("Ring a Ring o' Roses") read aloud causes a time fracture that takes away the parents of youngsters Rob and Helen. As Rob (Steven O'Shea), Helen's older brother, tries to call the police, two mysterious strangers calling themselves Sapphire and Steel arrive to fix the problem. Lead also arrives to provide assistance to Steel when the ghosts of the time corridor incapacitate him.

8 episodes · 1979

In an abandoned railway station, parapsychologist George Tully conducts an investigation, as two operators, Sapphire and Steel arrive for an investigation of their own. A malevolent, growing force identifying itself as the Darkness is feeding on the resentment of the dead, using as a focus Private Sam Pearce, the apparition of a World War I soldier shot and killed eleven minutes after the armistice had been signed at the eleventh hour of the eleventh day of the eleventh month in 1918. The Darkness 'recruits' other resentful shades from the past who also died unfairly as a result of coming or completed wars. Sapphire and Steel must decide if the life of one living human is worth the price of the danger presented by the growing Darkness.