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 Africa, who runs the Knox Foundation, charged with disarming unstable regions. However, it becomes apparent that he is using the weapons to arm his own militia, and is using the triggers to build nuclear weapons with the intent on liberating Africa "to a point where its voice is not just heard but listened to." Due to Knox's influence, Section 20 is forced to go dark to stop him. In the meantime Stonebridge seeks revenge on Craig Hanson for murdering his wife, and Scott has to contend with Central Intelligence Agency (CIA) agent Christy Bryant, whom he used to work contract killings with. By the conclusion of the series, two of the bombs are recovered, and the remaining two were disarmed before they could destroy Johannesburg, Stonebridge fulfills his revenge, and Knox kills himself when he fails.

Season 3 Episode 5 - Episode 5

The trail of the missing nuclear triggers leads to Cape Town, South Africa, where kidnappers abduct the children of an expatriate munitions expert to force him to cooperate. Air Date : 7th-Sep-2012

Season 3 Episode 1 - Episode 1

Damian Scott is sent to Mogadishu, Somalia to rescue British diplomats after they are kidnapped by warlord Huseyin Waabri. Meanwhile Michael Stonebridge adapts to his new career outside Section 20. Air Date : 17th-Aug-2012  Read More

Season 3 Episode 2 - Episode 2

Scott learns that one of the hostages is a high-ranking military intelligence operative and that Waabri is planning to sell nuclear devices in South Africa. Air Date : 17th-Aug-2012  Read More

Season 3 Episode 3 - Episode 3

Scott and Stonebridge track down a radical Islamic cleric in order to recover the nuclear devices, but are sidetracked by a CIA air strike and hostile locals. Air Date : 24th-Aug-2012  Read More

Season 3 Episode 4 - Episode 4

Scott and Stonebridge prepare for an attack by Al Qaeda while holed up in an Algerian farmhouse with the nomad leader and the wounded courier. Meanwhile, back at headquarters, Dalton is called on the carpet for her relationship with the courier. Air Date : 31st-Aug-2012  Read More

Season 3 Episode 5 - Episode 5

The trail of the missing nuclear triggers leads to Cape Town, South Africa, where kidnappers abduct the children of an expatriate munitions expert to force him to cooperate. Air Date : 7th-Sep-2012  Read More

Season 3 Episode 6 - Episode 6

Stonebridge seeks revenge on Craig Hanson after he turns up in Cape Town, South Africa. Meanwhile, Scott reconnects with a Mossad agent who's been following their case, but with a different set of orders; Knox hustles Evans to a secret installation and explains how he intends to turn his country into a world power. Air Date : 14th-Sep-2012  Read More

Season 3 Episode 7 - Episode 7

Knox extricates a political leader from a Zimbabwe prison, and the unit tries to catch up with the escapee by tracking his activist daughter. Air Date : 21st-Sep-2012  Read More

Season 3 Episode 8 - Episode 8

Unrest spreads after the assassination attempt on political leader Lutulu, while Stonebridge questions the shooter in an isolated police station and looks for a safe way out. Air Date : 28th-Sep-2012  Read More

Season 3 Episode 9 - Episode 9

Knox plans on unloading nuclear bombs into politically unstable African nations, while Matlock reveals why he joined Knox. Air Date : 5th-Oct-2012  Read More

Season 3 Episode 10 - Episode 10

In order to stop Knox, Scott comes to Bryant for assistance. Meanwhile Stonebridge has trouble focusing on the mission as he is bent on revenge. Section 20 get assistance from South African police to stop Knox's plot. Air Date : 12th-Oct-2012  Read More