简介：在享受一个难得的假期之后，Scott（Sullivan Stapleton）和Stonebridge（Philip Winchester）被召回20分部接受新的任务。另一名20分部特工在黎巴嫩贝鲁特追踪高深莫测的恐怖分子al-Zuhari不幸丧命，Scott和Stonebridge必须查清事情的真相。一条新线索引导他们来到哥伦比亚的偏僻丛林——拒信al-Zuhari的一个盟友正潜藏在这片由势力庞大的贩毒集团控制的地区?！　hona Mitra将继续在本季扮演Rachel Dalton少校，Michelle Lukes扮演Julia Richmond中士，Liam Garrigan扮演Liam Baxter中士。　　本季新加盟的演员包括：Robson Green扮演Philip Locke上校；Dougray Scott扮演叛逆特工James Leatherby；Milauna Jackson扮演反恐行动组在执行任务过程中遇到的关键人物Kim Martinez；Zubin Varla扮演神秘的可疑对象Leo Kamali。

简介：Section 20 are called into Bangkok, Thailand to rescue Chloe Foster, the daughter to British ambassador and longtim friend of Phillip Locke (Green), Robin Foster (Tim McInnerny). The team find the compound where she is being held, but during the raid the kidnappers escape with Chloe. After identifying the lead kidnapper as Ray McQueen (Max Beesley), Michael Stonebridge (Winchester), Damien Scott (Stapleton) and Julia Richmond (Lukes) track him to a nightclub and plant a tracker on him. However, McQueen soon realises he is being tailed and tries to escape with Chloe again, while also contacting Foster to deliver an armed bomb to the embassy where he is negoatiating with the North Koreans. With less than fifteen minutes, Scott and Stonebridge have to find McQueen and contend with a local gang. They ultimately rescue Chloe and apprehend McQueen, but Locke fails to stop Foster before the bomb detonated, killing Foster and a North Korean general

简介：在2003年入侵伊拉克的前夜，波特带领一组特种部队参与解救人质的行动，因不忍而放过持枪的当地童兵，结果同队的伙伴被杀害，连他和卡林森都受伤且损失惨重。七年后，波特得以重回战场，作出补偿。