MI-5

MI5 investigate after a bomb kills the Northern Ireland Secretary and his two daughters.

MI5 discover a Birmingham mosque is being used to train boys to become suicide bombers.

Zoe goes undercover to get near a man suspected of hacking into MI5's central computer.

MI5 is tasked to track down a thief when $2 billion is stolen from a bank in London.

Resources are tested during a training exercise as germ warfare threatens the capital.

When the US President makes an unscheduled UK trip, it's a huge and complex operation.

The French Intelligence Service wants to work with MI5 to catch a suspect arms expert.

In the midst of a 'winter of discontent', a section of the British army plans to strike.

The team is faced with halting the murderous activities of Colombian drug traffickers.

In Miami, Florida, a former assassin is asked to come out of retirement for one last job.