A Busman's Holiday

Rashid Syed wants revenge for the death of his father, a prominent Taliban leader, killed during the war in Afghanistan. Syed hatches a plan to strike fear into the heart of Britain through a cunning and audacious act of terrorism, after which he vanishes.

Via a series of fortunate breaks, MI5 Director General, Jack Griggs, manages to find out who was behind the terror attack and tracks down Syed to somewhere in Bangkok.  Jack calls on Ed Case to help, believing his excellent track record finding missing persons will be invaluable.  Ed jumps at the chance to take a busman's holiday, working undercover with his girlfriend and MI5 agent, Angel, but soon finds himself caught up in a sinister plot involving the CIA and enters a dangerous race against time to find his man.