A dangerous terrorist is on the loose and it's up to Section 20 to find him.

Reuniting for what they think is a routine "cleanup" exercise in Malaysia, Gracie Novin, Samuel Wyatt and Thomas "Mac" McAllister learn that a British operative in possession of intel about a downed Russian plane has been killed in Kuala Lumpur.

Section 20 start to close in on terrorist Omair Idrisi and his wife Jane Lowry, but the team is forced to extract devious arms dealer Morgan Ives from Libya.

As Jane Lowry surfaces in Budapest, Mac and Wyatt are forced to go undercover to infiltrate a dangerous group of white supremacists that has something she needs.

Things aren't looking good for Mac. He's blown his cover and is now facing certain death. Donovan digs into Zarin's past... and she doesn't like what she learns.

Section 20 must stop Lowry and Dr Markov from making and unleashing a deadly chemical weapon. In desperate need of intel, Novin infiltrates a drug lord's home.

Locked, loaded and set to resume their high-stakes mission, Section 20 are back. And they've got a big problem on their hands.

It's Section 20 vs Jane Lowry in a race to get to Omair Idrisi. It's a mission that hurls comms officer Jensen into extreme danger. Contains sexual scenes.

Watch out for a massive twist as Jensen digs into Project Tenebrae. Things don't go to plan for Mac and Wyatt as they storm a black site in search of Idrisi.

Following a high-speed jungle ambush in Myanmar, the suitcase nukes end up in the hands of a brutal Rwandan drug lord with a jealous streak; Colonel Beshnov, the Russian Alpha Group leader, surprises Pavel with a revelation about Zarkova.

Section 20 are desperate to clear their names. And to do so, they hatch a big and wreckless plan.

A double cross turns an already dangerous mission deadly as Section 20 board an enemy-packed train to stop the bioweapon's sale.

The team run into an old ally as they're thrown headlong into a dangerous race to stop the cyberweapon falling into Jihadist hands.

Section 20 are sent on a military mission to Bosnia to grab a jihadi financier who could lead them to Zayef Hajdari.

Section 20 successfully destroys the Albanian Mafia's weapons stash, but can they get the truth out of Zayef before it's too late?

It's never been more personal. Section 20 embark on their final-ever mission as they fight to stop Arianna Demachi's plans in Europe.

Section 20 are thrown back into combat when a rescue mission unleashes a conspiracy. Series eight of the action-chocked Sky original.

When a hacker interferes with air support causing a British missile to hit American forces, Porter is assigned the mission to find the man responsible, a former guidance engineer who was dismissed from the army. However, Porter is kidnapped and taken to a Taliban camp.

Novin is in danger, but saving their soldier isn't Section 20's only mission. The enemy is closing in on the cyberweapon. Fast.

Still haunted by the memory of a disastrous Special Forces mission which he led in 2003, John Porter is given an opportunity to redeem himself by returning to Iraq to rescue a kidnapped TV reporter.

Section 20 tracks Latif to South Africa, when a former IRA terrorist Daniel Connolly, targets a weapons-system designer. Scott switches places with a computer hacker and finds himself being lured into a dangerous honey trap.

Scott manages to pass Connolly's explosive test and works on bypassing a security code. Bratton contacts Marshall.

Collinson sends Porter undercover to Zimbabwe on a mission to break a former British soldier who was involved in a political assassination out of a high-security Harare jail.

Porter and Masuku become the hunted as a bushman tracker leads the relentless Zimbabwean authorities after them, and Layla Thompson becomes increasingly aware of the tension that exists between Porter and Collinson.

Porter's life is in danger when he finds himself trapped in a rebels' base in Pakistan. When he manages to escape, he learns that Hugh Collinson, the man he blames for the fatal hostage extraction of 2003, has arrived in Afghanistan to meet him for a final showdown.