Major, Carver and Kelly have gone their separate ways. Things are looking up for the AI-enhanced Major, whilst Carver is gunning for a promotion and is knee deep in a new case.

　　The legend continues... With new allies and old enemies, Robin Hood returns for a third series full of thrilling adventures as Robin and his gang continue to outwit the dastardly Sheriff and his forces. As the series begins, the outlaws are in disarray. Marian is dead and Robin has split up the gang and launched a solo mission to avenge her and kill Gisborne. It is only the intervention of the mysterious Tuck that stops Robin joining Marian in an early grave. Which is bad news for Gisbourne and the Sheriff. Under pressure from Prince John, they must take down Robin Hood once and for all. When the prince, tired of their ineffectualness and bad leadership, arrives in Nottingham to reprimand the Sheriff and Gisbourne, it becomes clear that there is only room forone sidekick at his table,but which one?

　　The contemporary retelling of the popular legend is back for a second series with more breathtaking archery, incredible swordplay, lots of humour, fun and energy, a smattering of brute force, and the raw determination to right wrongs. The Sheriff is in the final stages of a plot to kill King Richard upon his return from the Holy Land. The Sheriff also wants Robin Hood dead and with his devastating sister Davina, sets about catching him once and for all. It seems only a matter of time until Marian escapes to the forest and she and Robin can be together. Until that is, Gisborne turns up at Knighton Hall and razes it to the ground, seizing Marian and Edward and placing them under house arrest in the castle. Marian and Robin now separate for the good of England, Marian as the castle spy, and Robin leading his gang in the forest and villages of Nottingham.

　　当罗宾（约纳斯·阿姆斯特朗 Jonas Armstrong 饰）再度踏上故乡的土地之时，发现那里的百姓们正生活在水深火热之中，野心勃勃的盖伊（理查德·阿米蒂奇 Richard Armitage 饰）用他冷酷残暴的手段占领了大片土地。在这里，罗宾偶遇了曾经的青梅竹马玛丽安（露西·格里菲斯 Lucy Griffiths 饰），而玛丽安对于罗宾的态度却十分冷淡。
　　在大闹了行刑现场后，遭到郡长通缉的罗宾和好友威尔（哈里·劳埃德 Harry Lloyd 饰）和阿兰（乔·阿姆斯特朗 Joe Armstrong 饰）等人逃进了舍伍德森林，遭遇了在那里活动的小约翰（Gordon Kennedy 饰）一行人，两方人马产生了冲突。小约翰抓住了罗宾，准备把他送到郡长手里领赏。

　　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。

　　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

　　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。
　　Rhona 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。

　　丹尼尔（克里斯托弗·埃克莱斯顿 Christopher Eccleston 饰）身为国会议员，自己的私人生活却是一团糟，一次喝多了的他痛打了名为亨利（大卫·哈曼 David Hayman 饰）的男子，导致后者陷入昏迷之中。一时之间，丹尼尔成为了众矢之的。
　　在一场意外中，丹尼尔替因为公开反毒而遭到毒贩追杀的年轻人尼尔森挡下了一枚子弹，这一壮举让他一夜之间从人人喊打的过街老鼠变成了英雄。在荣誉和赞美之中，丹尼尔知道，命运给了他重新来过的机会。在政治顾问杰瑞（艾文·布莱纳 Ewen Bremner 饰）的建议下，丹尼尔决定参加市长的竞选，但这也意味着，他那些阴暗的过往即将暴露在大庭广众之下。

　　SAS是英国一支特别作战部队，每一个成员都是万里挑一、斥资百万打造出来的。他们威猛强悍又反应机敏，在沉稳老练的汉诺带领下，担负着普通军警力不能及的特殊使命。SAS面临的挑战艰不可测。

　　公元43年，罗马人大举进攻日后被称作大英帝国的不列颠尼亚，女英雄布迪卡女王（Boudicca）在民族危难之际挺身而出，与罗马执政官卡西乌斯（Cassius）建立联盟，鼓动卡西乌斯反抗罗马皇帝克劳狄一世。在该剧中，罗马帝国的军队发誓要彻底摧毁不列颠尼亚的「凯尔特之心」——由英勇善战的女战士和实力强大的德鲁伊控制的一块神秘土地。传说中，这些德鲁伊能够聚集冥界的强大力量，战胜任何敢于来犯的敌人。
　　Kelly Reilly扮演凯拉（Kerra），Zoë meijubar.net Wanamaker扮演安特迪雅（Antedia），她们是一对不共戴天的仇敌。在外敌入侵的情况下，她们必须抛弃个人恩怨与成见，共同抵御由卓越的罗马将军奥卢斯-普劳提乌斯（Aulus Plautius，David Morrissey扮演）率领的罗马军团。该剧在捷克首都布拉格和威尔士取景拍摄，2017年播出。