MI-5

A terrorist bomb devastates London. Can MI5 catch the perpetrators before another strike?

As the hunt for the bomb maker continues, Adam races to save the life of one of his team.

Adam goes undercover to destroy a far right political party from within.

MI5 discover that an Islamic terrorist is planning to enter the UK and launch an attack.

Harry discovers an ex-MI5 officer's suicide was staged and vows to avenge his murder.

A suspect planning a terror attack from prison is released to lead MI5 to other plotters.

Adam and Fiona's marriage is tested when she insists on going undercover.

The team investigate a Soviet investor who the government see as the saviour of the NHS.

Harry's stand against the CIA's extradition policy on British Muslims gets him sacked.

A legendary ex-spy pays a visit to Thames House with a bomb and holds the team to ransom.