Seven years after the events of part one, Porter is reactivated and tasked with rescuing a kidnapped reporter Katie Dartmouth. Porter realizes that Katie was kidnapped by the same terrorists he fought seven years before, including that teenager, now a young man. He succeeds in saving Katie's life, but fails to rescue As'ad after Collinson orders the rescue helicopter crew not to allow the rescue of As'ad. Just before the helicopter arrives, As'ad tells porter that Collinson killed those soldiers and covered it up by blaming him.

British sergeant Michael Stonebridge recruits help from Ex-Delta Force operative Damien Scott when Section 20 agent John Porter is kidnapped by a Pakistani terrorist. The two then uncover clues to a possible terrorist attack at a New Delhi hotel and race to foil it.

Scott and Stonebridge discover that the terrorists in the hotel are searching for Mahmood. Grant learns that Latif's real goal is to capture a Pakistani chemical scientist who worked with the weapons inspection team in Iraq in 2003.

Stonebridge, Scott, and Marshall stake out a trio of suspects in South Africa who might have some information about Latif. Ex-IRA leader, Daniel Connolly heists an armored truck in Cape Town.

At a remote facility outside Cape Town, Connolly closes in on his WMD prize, while Stonebridge and Scott are faced with dilemmas that could have far-reaching implications on their organization - and on the thread that connects them to Latif.

Stonebridge and Scott pose as aides for arms dealer Gerald Crawford to negotiate the release of hostage, Dr. Clare Somersby.

The first attempt to rescue Clare ends with Scott in the hospital and Stonebridge in pursuit with Crawford and Jacoub. Tahir takes Clare to a Janjaweed camp. Soldiers look for Scott at the hospital. Grant threatens Maggie about her story.

Stonebridge and Scott go to Kosovo to exchange a prisoner for kidnapped European Union officials.

Scott and Stonebridge are held captive with the four EU hostages in the wilderness of Kosovo. Hasani plans to sell Dana as a sex slave, and Allen, the double agent who has been providing information to Latif.

The boys are called away after MI5 team traced Latif to Chechen rebels country hideout, which turns out to be an abandoned vast Soviet area tunnel complex. They go in with support from Georgian commandos, which are eliminated by explosives. Latif escapes with some cahoots, who were screened for surgery. Some turn up in Budapest, where a world security summit is held, carrying the neuro-toxin and sophisticated bomb found in the tunnels. Damien also found indications of foul play since his Iraq set-up army booting.

Latif is finally in Section 20's clutches. The team frantically tries to discover the bombers' target and for that they need Latif to talk. Scott and Stonebridge go after the bombers. Latif's henchmen attack Section 20 command.

Season 3 finds Scott and the mysterious agent Rachel Dalton in the Kenyan desert securing the transfer of a Libyan functionary seeking asylum. Back in Britain, Stonebridge is training Section 20 recruits. Nothing goes as planned for either of them.

Taken hostage in Mogadishu by Waabri and his girlfriend Asmara, Scott and Dalton escape with the help of Stonebridge and Richmond. Sinclair is replaced as leader of Section 20. Michael and Kerry rekindle their relationship.

Still tracking down the triggers in Algeria, Scott and Stonebridge ally with Markunda, an exotic leader of a nomadic tribe to catch Othmani, the brother of an Al Qaeda leader, El Soldat.

El Soldat's forces are preparing to assault the farmhouse where Stonebridge, Scott, Markunda, and Othmani are holed up. Sinclair continues to question Dalton's command style. Karl Matlock continues to make inroads to acquire the triggers.

Section 20 races to intercept a former South African nuclear scientist, Peter Evans, from Matlock. At the airport, they run into a team of Mossad agents who want to kill Evans. Section 20 learns that Knox is behind loss of the triggers.

Stonebridge's mistake allows Matlock to capture Evans. He makes amends by enlisting Ava Knox to go against her father. Sullivan tries to convince Rebecca to leave Mossad.

Political prisoner and former Zimbabwe leader Walter Lutulu is broken out of prison by Matlock. Section 20 is breached and its members imprisoned with dire consequences.

Lilian Lutulu learns who orchestrated her father's assassination. Scott makes a promise to her to kill Knox. Down one critical person on the team, Section 20 raids Knox's camp in an attempt to retrieve the triggers.

Stonebridge fears he can't control his obsession with the man who killed his wife. With a nuke en route for delivery, the team races to intervene with explosive consequences for an entire village. Christian Lucas, a local lawyer who arranged for the delivery, gets pressured to make amends by the terrorist gang who paid him to set up the deal. Section 20 races to save him and his family. Meanwhile, Stonebridge gets his chance to avenge the death of his wife, but can he pull the trigger? Damien still hopes on collaboration with CIA agent Christy, but he knows from experience he can never really trust her.

Damien has to choose between vengeance and duty to Section 20. Knox finds his sphere of influence diminishing drastically and will do almost anything to leave his mark. Section 20 goes airborne to assault the Nigerian gang protecting Knox and a major firefight ensues. Matlock reaches the end of his patience with Knox's amoral behavior. The team has to race to try to prevent Knox from carrying out his nefarious plan to destroy an entire city. Stonebridge comes face to face with the man who killed his wife, while Maj. Dalton hears Knox's secret.

Strike Back: Locked & Reloaded is a 30 minute preview of the hotly anticipated upcoming series "Strike Back: Vengeance", starring Phillip Winchester, Sullivan Stapleton and Rhona Mitra, which explores the making of this explosive military drama.

A Section 20 operation in the Beqaa Valley goes badly resulting in Baxter's death. Stonebridge and Scott are enjoying a well-deserved vacation. Recalled to duty, they team up with Kim Martinez to track and capture the killer in Colombia.

After the Kamali escape, Section 20 tries to capture him by breaking into his safety deposit box in a downtown Bogata bank. Dalton continues to track down the people in Beirut who gave her up.

Section 20 tracks facilitator James Leatherby in Beirut. They continue to use Kamali in operations on al-Zuhari and Leatherby. Dalton is making bad decision due to her emotions over Baxter's death. Section 20 acts on tips about al-Zuhari.

Leatherby takes Kamali's daughter, Ester, hostage. Section 20 attempts a brazen rescue mission to get her back. Dalton tortures and interrogates Sofia for information. The escape ruse that Kamali and Dalton use has surprising consequences.

The tracking of McKenna leads Section 20 to Budapest; At Dalton's funeral, Richmond learns that she has a son. Twenty acquires an optic drive with a message from al-Zuhari about an attack. It seems the IRA and Al-Zuhari have joined forces.

The IRA and the Muslim terrorist interrogate Locke. They want the new protocols for NATO. While Section 20 is closing in on the terrorist base, the IRA planning its own attack on the British Embassy.

Decoding the NATO hard drive would breach all NATO security. Scott and Stonebridge go undercover in a Russian prison to prevent a hacker from breaching the firewalls of the hard drive. Stonebridge continues to struggle with his focus.

Though weaker, Stonebridge gets direct knowledge of Al-Zuhari's plan. Still imprisoned at Black Bear, Scott looks for an escape. Suspicions about Kamali continue to mount. Ulyanov's vendetta against Scott and Stonebridge intensifies.

With the death of Leo, Ester needs protection. Scott and Stonebridge keep their promise. Richmond and Martinez follow up on intelligence gained from facility workers. Section 20 attempts to stop a train before it reaches a populated area.

Kamali is alive. He fooled everyone when he faked his death. Locke makes a deal with Ulyanov to capture Kamali. Kamali's team attempts to deploy the weapon at Ramstein AFB. Stonebridge and Scott have many important decisions to make.

A friend of Locke needs section 20's help when his daughter is kidnapped.

Scott and Mike continue to look for the ones responsible for the embassy bombing. The ambassador recovers in hospital with Chloe and his wife beside him. Mike still recovering from the sore shoulder takes on desk command while Scott and Philip go out to get Ray McQueen back from the corrupt police. Ray will only talk with his wife safe.

As Locke realises his long-term friend is working with the dangerous Yakuza and Office 39, Scott must protect his son when they come under enemy fire.

Scott provides some parental advice to his son, while the rest of Section 20 attempt to locate Mei Foster. At the same time, Section 20 accepts an uneasy alliance with a pair of CIA mercenaries who are only interested in Shiro. The team attempts to stop Mei, while Scott races towards the action on a stolen motorcycle.

Scott and Stonebridge sneak into North Korea to destroy a factory where the vanadium is being processed. Finn is kidnapped. After destroying the factory Scott and Stonebridge surrender because Mei threatens to kill Finn.

Whitehall denies the existence of Scott and Stonebridge. Locke enlists the help of an old Russian friend to rescue his team. Li-Na uses Finn to coerce a confession.

The team head for Vienna following the lead on Li-Na & Kwon. From Nina's agent they get details of a meeting between Kwon and someone from Locke's past. They observe the meeting but things do not go according to plan.

Scott and Stonebridge chase Li-Na and Kwon and attempt to rescue Pirogova. Locke encounters "Oppenheimer" again and must decide his fate. Scott and Stonebridge discover Li-Na and Kwon's intended target with codes.

The Section 20 team is showing no signs of fatigue after their cross-global mission to track down slippery North Korean terrorist, Li-Na. Always one step ahead of his British bosses, instinct-driven Lt. Colonel Locke takes his team rogue once more as they defy Whitehall and travel to Geneva where he is convinced Li-Na and Kwon are preparing to attack the United Nations HQ.

A group of mercenaries led by Faber and Mason, pursue Scott and Stonebridge as they seek payback.

The team learns about Colonel Donovan's involvement in Project Tenebrae. Waves of PMC soldiers trying to recapture Idrisi have a running, driving, and shooting battle with Section 20. Donovan and Lowry have another face to face encounter.

The Russians are coming. Ives loses Idrisi to Russian agents. Twenty goes after the Atlas of covert British agents that Lowry stole and later hid. Stonebridge and Scott's surprise return aids Section 20 in a bold plan.

The first attempt to rescue Clare ends with Scott in the hospital and Stonebridge in pursuit with Crawford and Jacoub. Tahir takes Clare to a Janjaweed camp. Soldiers look for Scott at the hospital. Grant threatens Maggie about her story.

Taken hostage in Mogadishu by Waabri and his girlfriend Asmara, Scott and Dalton escape with the help of Stonebridge and Richmond. Sinclair is replaced as leader of Section 20. Michael and Kerry rekindle their relationship.

A group of mercenaries led by Faber and Mason, pursue Scott and Stonebridge as they seek payback.

Whitehall denies the existence of Scott and Stonebridge. Locke enlists the help of an old Russian friend to rescue his team. Li-Na uses Finn to coerce a confession.

Stonebridge and Scott pose as aides for arms dealer Gerald Crawford to negotiate the release of hostage, Dr. Clare Somersby.

Scott and Stonebridge sneak into North Korea to destroy a factory where the vanadium is being processed. Finn is kidnapped. After destroying the factory Scott and Stonebridge surrender because Mei threatens to kill Finn.

The tracking of McKenna leads Section 20 to Budapest; At Dalton's funeral, Richmond learns that she has a son. Twenty acquires an optic drive with a message from al-Zuhari about an attack. It seems the IRA and Al-Zuhari have joined forces.

Though weaker, Stonebridge gets direct knowledge of Al-Zuhari's plan. Still imprisoned at Black Bear, Scott looks for an escape. Suspicions about Kamali continue to mount. Ulyanov's vendetta against Scott and Stonebridge intensifies.

Scott and Stonebridge chase Li-Na and Kwon and attempt to rescue Pirogova. Locke encounters "Oppenheimer" again and must decide his fate. Scott and Stonebridge discover Li-Na and Kwon's intended target with codes.

Section 20 races to intercept a former South African nuclear scientist, Peter Evans, from Matlock. At the airport, they run into a team of Mossad agents who want to kill Evans. Section 20 learns that Knox is behind loss of the triggers.