Torchwood season 3 consist of five episodes only (one hour each), and was developed as a single story called Children of Earth. The episodes are titled Day One, Day Two, Day Three, and so on.
The series focuses on the consequences of appeasement policy. Having been given 12 children as a tribute in 1965, the 456 aliens arrive in the present demanding a greater share of the Earth’s population. For the first time in the series, the majority of the action takes place outside of Wales. Torchwood’s headquarters is destroyed in the premiere and the remainder of the Torchwood team have relocated to London. Kai Owen is promoted to a regular cast member, while a new cast of political figures are introduced alongside family members of main characters Jack and Ianto. Nicholas Farrell plays Prime Minister Brian Green whose intent is to give in rather than fight the 456 aliens, leaving Torchwood to stand against the government and the aliens. David-Lloyd departs the cast, and in the closing scenes, with Gwen pregnant and Jack abandoning Earth, Torchwood effectively disbands…
Peter Capaldi, the 12th Doctor, plays John Frobisher, the Permanent Secretary to the Home Office and the civil servant placed in charge of the 456 incident.
Torchwood cast promo photos on DVDBASH (326 pictures, 330Mb) series 1,2,3,4, starring John Barrowman, Eve Myles, Kai Owen, Gareth David-Lloyd, Burn Gorman, Naoko Mori, Tom Price, Paul Kasey, Mekhi Phifer, Alexa Havins, Bill Pullman, Lauren Ambrose, Peter Capaldi, Freema Agyeman, James Marsters and many more: