From the author of the bestselling, The One That Got Away and Stand By, Stand By comes a compelling and hard-hitting new thriller which gives an extraordinary insight into the SAS in action.
Geordie Sharp, SAS sergeant, returns following his heroic triumphs in Stand By, Stand By. Still caught in a desperate personal battle with the IRA, Sharp is ordered to undertake two top-secret missions, in the full knowledge that, if they go wrong, the authorities will deny all involvement.
The first is to liquidate an Iraqi defector in Libya. The hit team must leave no trace of their identity, dressed in Arab clothes and using Soviet weaponry they work undercover.
Returning to base, Sharp is ordered to carry out a high-level political assassination in mainland Britain. His failure will result in tragic consequences - his kidnapped four-year-old-son and his girlfriend will die at the hands of the IRA - Sharp has no option but to succeed in the mission.
Trapped between opposing forces in a fight to the death, he twists and turns through a nightmare maze, desperately seeking some way of averting tragedy. Who will be hit hardest - Geordie Sharp or the British Government?
With a frightening ring of plausibility, Zero Option is as gripping and explosive a story as we have as we have come to expect from Chris Ryan.

'Real strength in detailing the nitty-gritty of operations' Sunday Times