List of Torchwood episodes

[11] The programme moved channels once more when a five-episode mini-series subtitled Children of Earth was broadcast on BBC One from 6 to 10 July in 2009.

The three are joined by special agent Rex Matheson and analyst Esther Drummond from the Central Intelligence Agency, as well as death row inmate Oswald Danes.

[20] The first two series of Torchwood were led by Chris Chibnall as head writer[21] while Davies returned as showrunner for the final two.

[30] Series 1 focuses on Gwen Cooper, her first meeting with Jack Harkness, and her introduction to Torchwood; as well as introducing the characters of Owen Harper, Ianto Jones, Susie Costello, and Toshiko Sato.

Series 2 focuses on the disappearance of Jack and his subsequent return, as well as his past; and also introduces the mysterious yet dangerous character named John Hart.

It also focuses on Jack and Ianto's relationship, as well as that of Gwen and Rhys.. Series 4 centres on an event called Miracle Day, when everyone in the world stops dying and subsequently becomes immortal.