The tenth and final season of long-running British espionage thriller "MI-5" sees Harry return to his post as head of Section D, wherein his Russian opposite Ilya Gavrik (Jonathan Hyde) proposes a strategic partnership between their countries. New "spooks" Erin Watts (Lara Pulver) and Calum Reed (Geoffrey Streatfield) join the fight to prevent all enemies of the alliance from sabotaging the plan and instigating a war.

　　Season seven of British spy thriller "MI-5" opens with Adam Carter (Rupert Penry-Jones) valiantly battling to move a car bomb away from a densely packed memorial service. Meanwhile Harry secures the release of Lucas North (Richard Armitage), a MI-5 officer imprisoned in Russia for eight years. It's not long, however, before Ros begins to suspect Lucas' loyalties. The rest of the season deals with a top secret Cold War-era operation named Sugarhorse.

　　In season six of the British espionage thriller, the team are pushed to their limits, as the relationship between British and American security deteriorates and loyalties change. Adam and Ros fight against an emerging terrorist threat, and a deadly virus that could decimate London. This season breaks away from the case-by-case episodic format, with one dominant storyline tying all the action together.

　　The British espionage drama "MI-5", provides more shocking twists and turns in its third season. Tom Quinn (Matthew Macfayden) disappears following a shooting and new man Adam Carter (Rupert Penry-Jones) rises to the challenge in Section B. After recovering from his injury, Harry (Peter Firth) tasks Adam with proving Tom's innocence. Later in the season Danny (David Oyelowo) and Zoe (Keeley Hawes) are sent on a mission that has tragic consequences for one of them.

　　The stakes are raised in season two of "MI-5", as the threat to national security increases and the need to thwart the terrorists operating within the UK becomes more urgent. Tom is investigating a Serbian terrorist plot. His girlfriend and her daughter are trapped in Tom's house with a lap-top which is thought to contain a bomb. Meanwhile another bomb is primed to explode and this one kills the Secretary of State for Northern Ireland. Adding to the possible dangers faced by other government officials, Tom learns from his American colleague that an assassin is in town, the CIA know about him but they haven't told MI-5.

　　This British espionage thriller centers on a team of MI-5 counter-terrorist spies collectively known as 'Spooks' because of the shadowy nature of their existence. Technically speaking, Spooks don't even exist--they have no names, identities, or known locations. Yet these secret agents are all that stand between the nation and the terrorists who try to undermine national security. Matthew Macfayden heads the cast as Tom Quinn, a man struggling to deal with his double life.

　　Season nine of long-running British spy thriller "MI-5" opens with Ros' (Hermione Norris) funeral, where Harry (Peter Firth) learns of a shocking betrayal at the highest level. Also this season, the agents go after Somali terrorist Hussein Abib (Peter Bankole), a scandalous secret from Lucas' (Richard Armitage) past is unveiled, and a growing bond develops between Ruth and Harry. Sophia Myles and Max Brown join the cast as agents Beth Bailey and Dimitri Levendis.

　　The eighth season of the British spy series "MI-5," which follows secret agents as they foil evil plots around the globe, begins with the fallout from Harry's kidnapping by the Russians. A mysterious organization known only as "Nightingale" is the ongoing focus of the eight episodes. And Lucas' relationship with CIA agent Sarah Caulfied (Genevieve O'Reilly), reignites concerns over his loyalty. This season also sees the exit of one of the few original cast members, Malcolm Wynn-Jones.

　　Season four of espionage drama "MI-5" finds the team reeling from the loss of Danny (David Oyelowo), but thrown back into action when a bomb detonates near his funeral. Zafar Younis (Raza Jaffrey) and Juliet Shaw (Anna Chancellor) are introduced to the show, in a story involving a potentially devastating terrorist attack in the capital. Later in the season Lyndsay Duncan guest stars as a former MI-5 officer with a deadly grudge, one which threatens the lives of everyone back at The Grid.

　　In the fifth season of the British espionage thriller, Harry Pearce and Adam Carter begin to suspect that members of the British establishment are creating a crisis in order to bring about a change of government. In the opening episodes Juliet Shaw encounters a car bomb, and her life is changed forever. Plus we meet former MI-5, turned MI-6 officer Ros Myers (Hermione Norris), who discovers a shocking family connection to the season's game-changing conspiracy.

　　故事紧接着上一季，通过一场精心策划的大爆炸，沃尔特（布莱恩·科兰斯顿 Bryan Cranston 饰）终于除掉了长久以来的威胁古斯塔沃（吉安卡洛·埃斯珀西多 Giancarlo Esposito 饰），也将古斯塔沃一手建立的毒品帝国连根拔起。然而，“事业”上的成功并没有为沃尔特带来太多的快乐，因为他和妻子斯凯勒（安娜·古恩 Anna Gunn 饰）之间的关系再次跌落到了冰点。
　　古斯塔沃死了，但沃尔特的野心并没有消失，他联手杰西（亚伦·保尔 Aaron Paul 饰）与麦克（乔纳森·班克斯 Jonathan Banks 饰），开始建立属于他的新的帝国。一次偶然中，汉克（迪恩·诺里斯 Dean Norris 饰）在沃尔特家中发现了沃尔特就是海森堡的确凿证据，巨大的打击之下，他决心大义灭亲，昔日的连襟，如今沦为对手。与此同时，一股新的势力正在毒品圈内逐渐壮大，他们即将成为汉克最强大的敌人。