Watch Strike Back series free. Strike Back: Shadow Warfare is the title of the fourth series in the Strike Back family of shows. Series 1: (Chris Ryan's Strike Back) featured an ex SAS sergeant named John Porter who is recruited by a secretive arm of the military known as Section 20. Series 2: ( Strike Back: Project Dawn) still featured Section 20 but had an almost completely new cast led by Amanda Mealing (Holby City), Sullivan Stapleton and Philip Winchester (Camelot). Series 3: ( Strike Back: Vengeance) continues on from Series 2, but with minor cast changes, including the addition of Rhona Mitra (Underworld: Rise of the Lycans) as Maj Rachel Dalton. Series 4: (Strike Back: Shadow Warfare), has the same main cast as series 3, but adds Robson Green (Wire in the Blood) as a new member of Section 20, Dougray Scott (Desperate Housewives) as rogue operative James Leatherby and Milauna Jackson (Blood Done Sign My Name) as a key player who crosses paths with the counterterrorism team. Series 1 was produced for Sky TV but from Series 2, the show was co-produced by Sky and Cinemax, resulting in slightly differing titles between the UK and US (UK series 2,3 and 4 lose their subtitles and become seasons 1,2 and 3 in the US). Source: TVRage
