MI-5 on A&E

As the fourth series of Spooks begins the stories are more relevant than ever before. The series has always been fast-paced and hard-hitting but now the battleground of national security provides an even more dramatic backdrop to the challenges facing the team from MI5. The group were left reeling after the shocking death of Danny at the hands of hostage-takers as the last series concluded. Now Adam, Harry, Ruth, Fiona and rising star Zafar set out to become even stronger in their battle to safeguard the nation. An action-packed series opener leaves MI5 with only 48 hours to prevent a catastrophe. And Adam faces one of the most difficult choices of his career in order to save a hospital from devastation: will he be forced to let a brave and innocent young woman die?

The team continues to contend with terrorist plots, embassy sieges, weapons proliferation and anarchists; not to mention the conflicts and power struggles back in the office. Can Zoe and Danny track Tom down and prove his innocence after he shot Harry? And is the latest addition to the team, former MI6 agent Adam Carter, a help or a hindrance?

This landmark series takes viewers into the thrilling world of MI-5 -- known to insiders simply as "Five" -- the clandestine security service, and the people who make up the elite team. They tackle organised crime, terrorist activities, embassy sieges, weapons proliferation and anarchists, not to mention the conflicts and power struggles back in the office.

Britain is left reeling after a series of terrorist attacks. The MI-5 team believe the attacks cloak a conspiracy to destroy democracy and turn Britain into a 'police state'. Can the team protect the democratic way of life? Zafar goes undercover and infiltrates a home-grown Islamic terror group who are planning a massive attack against London. There could also be serious repercussions for Ruth when she finds out the deaths of seven terrorist suspects in a prison fire were in fact staged by British military intelligence.

Having survived the bombing of the Thames Barrier, Adam and Ros recover to find London facing an even greater threat. While attempting to thwart an attack that could jeopardise a historic peace accord between Britain and Iran, the team unwittingly unleash a deadly killer. But with a virus that mimics the pneumonic plague, there can be no negotiation. And when Zaf is kidnapped by armed mercenaries, the team realise that in a game of the highest stakes they hold none of the cards. As the stuff of nightmares becomes increasingly real, London faces total devastation...

The award-winning intelligence drama returns for a seventh series. Richard Armitage joins the cast as MI5 officer Lucas North. Having spent the past eight years in a Russian prison, North is welcomed back by MI5 supremo and old friend Harry Pearce, who was instrumental in finally securing his release

The award-winning, sophisticated spy drama returns for a rip-roaring eighth series. The fallout from Russia's attack on London finds the team in a race against time to rescue Harry, who has been kidnapped by rogue Russian agents. But as they dig deeper into his disappearance, they find a trail that leads to Iraq, and a conspiracy that involves the CIA, MI6 and some missing weapons-grade uranium. Could Harry know where it is? And how is former team member Ruth Evershed, recently returned to the security of MI5 having fled her new life in Cyprus, connected to it all?

The hit drama that takes us into the thrilling world of MI5, the clandestine security service, is back. The second series gets off to an explosive start, picking up at the exact moment the first one finished. There's organised crime, terrorist activities, embassy sieges, weapons proliferation, subversives, anarchists and drug traffickers, not to mention the conflicts and power struggles the elite team has to deal with back in the office.