Strike Back

Strike Back is an action-adventure/spy-drama television series based on the 2007 novel of the same name by novelist and former Special Air Service soldier Chris Ryan. The series follows the actions of Section 20, a secretive branch of the British Secret Intelligence Service (SIS, aka MI6), who operate several high risk, priority missions around the world. The six-part first series began broadcasting on Sky One on 5 May 2010.