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.

The episode was rated 7,98 from 693 votes.

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.

The episode was rated 7,99 from 813 votes.

Section 20 attempts a risky rescue for a potential new ally. Now veering close to the edge, but determined to find the truth, Dalton goes AWOL with a detainee.

The episode was rated 7,99 from 718 votes.

The team tracks stolen property to Russia, where Scott and Stonebridge continue their side careers as "outlaws." As Stonebridge's health continues to deteriorate, they discover new mysteries about a piece of Al-Zuhari's plan. Kamali worries that his cover identity may not hold.

The episode was rated 8,01 from 698 votes.

Community unrest plagues South Africa and Zimbabwe following Lutulu's shooting. Stonebridge questions the shooter, while Scott, Lilian and Lutulu are on the run from assassins. Knox and his new ally make a new plan.

The episode was rated 8,02 from 640 votes.

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.

The episode was rated 8,04 from 683 votes.

Section 20 is torn between devoting their resources to the mission or saving one of their own. Stonebridge's health continues to affect him in the field. Al-Zuhari's network moves forward quickly, striking close. Kamali explains why yet another threat is emerging.

The episode was rated 8,06 from 705 votes.

Out of options and hunted by the resourceful cartel, Section 20 goes for a longshot and attempts an assault in downtown Bogota, hoping to obtain intel on one of al-Zuhari’s key people. Meanwhile, Dalton looks for the source that exposed her team in Beirut, but discovers a surprising ally and a piece of al-Zuhari’s plan.

The episode was rated 8,08 from 776 votes.

Scott looks for an escape from Black Bear Prison, while Locke becomes suspicious of Kamali. The team races to locate Stonebridge, whose condition grows more dire when he encounters Al-Zuhari's plan firsthand. Continuing his vendetta, Ulyanov closes in on Scott and Stonebridge.

The episode was rated 8,14 from 673 votes.

Enjoying a long-deserved vacation, Scott and Stonebridge are recalled after a fellow Section 20 member dies while pursuing the elusive terrorist al-Zuhari in Beirut. A new lead sends them into the remote jungles of Colombia in pursuit of a known associate of al-Zuhari’s and deep in territory controlled by a powerful drug cartel.

The episode was rated 8,16 from 827 votes.

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.

The episode was rated 8,17 from 646 votes.

Scott and Stonebridge try to keep their promise to protect Ester; Richmond and Martinez follow an Al-Zuhari associate; the team sets out to stop an infiltrator before he reaches a populated area.

The episode was rated 8,18 from 686 votes.

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.

The episode was rated 8,22 from 680 votes.

Scott and Stonebridge face a new pivotal player in Al-Zuhari's plan, and with an imminent attack looming, the team resorts to questionable measures, sparking conflict within the unit.

The episode was rated 8,26 from 697 votes.

Gone to ground after a daring helicopter escape, Scott and Stonebridge try to elude a team of mercenaries in the Swiss Alps in order to bring a traitor to justice. With their ammunition nearly spent, the boys get a helping hand from an unexpected source before ending up in a final, epic fight to the finish.

The episode was rated 8,30 from 832 votes.