MI-5

A car bomb kills the Northern Ireland Secretary and his two daughters. Soon after a British army base is attacked. Could this be the start of a revenge campaign by terrorists?

An MI5 agent is identified and tortured inside a Birmingham mosque.

MI5's central computer is being hacked and the number one candidate is school teacher, Gordon Blaney.

When $2 billion is stolen from the last British family-owned bank in London, MI5 is tasked by the government to track down the thief - and the money.

The team take part in an EERIE (Extreme Emergency Response Initiative Exercise). They must act exactly as if there's a national emergency.

When the President of the United States makes an unscheduled trip to the UK, it's a huge and complex operation.

The French Intelligence Service wants to work with MI5 to catch an arms expert they suspect of trying to sell Eurofighter technology.

Civil service union strikes are bringing the country to a standstill, but MI5 is concerned that a section of the British Army is planning strike action of its own.

Eight Customs and Excise officers are killed on a surveillance operation monitoring the Chala Cartel - Colombia's biggest drug traffickers.

In Miami, Florida, a known assassin is asked to come out of retirement for one last task - to kill an Englishman. The only thing is, he has to do it dead.