Captain John Hart returns to have his revenge on Torchwood in the concluding episode of Doctor Who writer Russell Davies's award-winning drama.

Taking Captain Jack prisoner, he sends him back in time for a long overdue reunion. Without their leader, Torchwood are faced with a city flooded with Weevils, on the brink of destruction. But who is Captain John really working for? Can anyone trust him? And how great a price must Torchwood pay to save the city?

Captain John Hart is played by James Marsters and Captain Jack by John Barrowman.