A Jack themed episode

Whilst investigating an old, derelict dance hall, Jack and Tosh are transported back to the 1940s, during the Blitz. Owen, Ianto, and Gwen realise, in modern day, that this has happened, and go in search of clues Tosh may have left. Meanwhile, back in the forties, Jack meets a very interesting man. One with the name Captain Jack Harkness...

With the Rift having been opened, people and objects throughout time are falling through it, and being spread across the world. "The thing in the darkness" has finally come, and Jack realises that he is the only one who can save planet Earth from the destruction that "the son of the Beast" will cause.

Captain Jack returns, as the Torchwood team reunite to fight a rogue Time Agent. The mysterious Captain John Hart is determined to wreak havoc, and needs to find something hidden on Earth. But with Gwen's life in danger, and cluster bombs scattered across the city, whose side is Jack on?

Jack calls in an old friend for a favour, none other than Martha Jones, as they attempt to stop a pharmaceutical facility that uses aliens in the hope of discovering a cure for all diseases.

Gwen awakes on her wedding day to find she has been impregnated by a shape-shifting alien male. With it's life-partner eager to retrieve it's mate at the cost of Gwen's life, the team race to intercept her as Gwen decides to go through with her marriage at a secluded location with all of her family present

Captain John Hart returns to wreak havoc upon Jack's world, who ends up getting captured. It is up to the Torchwood team to rescue him and save the city.