Children of Earth — Episode 1

Day One

An ordinary day becomes one of terror, as every single child in the world stops and delivers a message to all the governments of Earth: "We are coming." As a trap closes around Captain Jack, the sins of the past are returning and long-forgotten events threaten to reveal an awful truth. Jack, Gwen and Ianto are helpless as events escalate to such a degree that mankind faces the end of civilization itself.