The high-octane drama concludes in spectacular style.

It's all-out action as Locke defies Whitehall to take super soldiers Scott and Stonebridge on mission to stop Li-Na attacking the UN HQ in Geneva.

When Section 20 discovers that Li-Na is mounting a nuclear attack, Locke neglects the mission in order to avenge the murder of his son.

The battle with Li-Na moves to Europe as Section 20 try to get back on her trail. Locke gets a chance to confront his nemesis.

Scott and Stonebridge make a major mistake and fall into the clutches of North Korean agent Li-Na, leaving Locke having to defy orders to get them out.

The action comes thick and fast as Section 20 super soldiers Scott and Stonebridge risk war (and family) to destroy the stolen Vanadium.

Scott has a serious talk with his son whilst the rest of Section 20 form an uneasy alliance with a couple of CIA mercenaries as they go after Shiro and Mei Foster.

Locke works out that his long-time friend is working with the dangerous Yakuza and Office 39. Scott needs to protect his son after they find themselves under enemy fire.

Section 20 try to track down the real culprits behind the embassy attack, starting with getting information from gangster Ray McQueen.

The daughter of Thailand's British ambassador is kidnapped, so Stonebridge, Scott and the rest of the team sign up for another do-or-die trying adventure.