MI6 are demanding Matt Browning helps a giant drugs company destroy copies of its medicines being produced by Eastern European gangsters. But the mission is not what it seems.
An old friend from the Army has turned into a homicidal maniac - and soldiers from around the country are behaving manically too. Suddenly Matt finds himself thrust into the centre of a deadly mystery.
As the answers start to unravel, Matt finds himself the only man in possession of a terrifying secret. Alone and on the run, he is up against The Increment - the most ruthless, lethal killing machine on earth.