John Porter resigns from the SAS following the aftermath of a rescue mission in Iraq on the eve of the American led invasion in 2003, where two fellow soldiers were killed, apparently by a thirteen-year boy Porter had failed to kill, leaving him responsible. Seven years later, Porter is "reactivated" following the kidnap of jour...

Porter is captured by a Pakistani terrorist called Latif while investigating a planned operation of Latif, Project Dawn. Sergeant Michael Stonebridge finds disgraced ex-Delta Force operative Damian Scott, who would not be hired by even private military contractors, who previously worked with Porter to track Latif. After Porter i...

Former military intelligence operative, Major Rachel Dalton takes charge of Section 20. They work throughout Africa to gain their hands on four nuclear triggers which are in the wrong hands after a mission in Somalia. The triggers have originally been sold to Conrad Knox, an English billionaire and philanthropist based in South ...

Scott and Stonebridge are recalled from holiday in California to capture Leo Kamali, a high ranking member of a terrorist cell led by al-Zuhari, an elusive terrorist. After capturing him in Colombia it is revealed that Kamali is working deep cover with the CIA to stop al-Zuhari. As Kamali is pressured to work with Section 20, Da...

From the tropical beaches of Thailand to the towering peaks of the Swiss Alps, Strike Back: Legacy thrusts Section 20 onto a mission the scale of which has never been seen before as this season Scott & Stonebridge go up against the state sanctioned criminal wing of the North Korean regime, known as Office 39. Coordinated by a bea...

Tasked with covert military intelligence and high-risk operations, the resurrected unit, known as Section 20, embarks on a lethal manhunt that will uncover a vast web of interconnected criminal activity. As the team journey across the Middle East and Europe, they uncover a deadly conspiracy which threatens to overwhelm them all ...

When a Russian bomber crashes in the South China Sea, the covert special-ops soldiers of Section 20— Thomas “Mac” McAllister, Samuel Wyatt and Gracie Novin — are sent to investigate. There, they cross paths with Katrina Zarkova, a rogue Russian operative with questionable loyalties. Under orders of the new commanding officer, Co...

The members of Section 20 are thrown back into combat when a seemingly-straightforward mission in Kosovo to rescue a British scientist uncovers a conspiracy.