Torchwood S02 12

The second season takes the Torchwood team through dare-devil action, temptation, heartache, and a life-changing event. They journey to the 51st Century and World War I, save a stranded creature from horrific abuse, battle a memory thief who uncovers long-forgotten secrets among the entire team, and come face-to-face with an entity that may well be Death itself. And slick Captain Jack returns to battle a rogue Time Agent, the charismatic-but-psychopathic Captain John Hart.