Vera travels to Los Angeles to join the Torchwood team, as governments across the world swing into action with the new Category System. Gwen flies home to the UK, to save her father and infiltrate the UK healthcare camp, while Rex, Vera and Esther go undercover at the San Pedro Facility. But a deadly trap is closing around them all - while Jack tries desperately to make Oswald Danes change his message to the world, the other members of Torchwood discover the awful truth behind the Category System. But are they too late..?