—Jack, sorry. Urgent. I need your help. I’m still in London. Annie.

A one-line message, a call for help from a woman he loved long ago and never really stopped loving—that’s all it takes to propel Jack Devlin on his most personal and painful mission in ONE WAY OUT.

After Annie Turino’s husband is found brutally murdered for betraying the Yardie's, a Jamaican drug gang ruled by the vicious "King" Oliver and his enforcer, Hinton, Annie and her five-year-old daughter Elizabeth find that they are next on the "Yardie" revenge list.

And Annie knows there is only one man she can call for help.

From the moment Jack Devlin arrives in London, he walks right into the middle of a pitched battle with the "Yardie" assassins, the odds of surviving getting slimmer and slimmer as Annie’s enemies grow to include a gang of Eastern European criminals intent on bringing a new level of violence and chaos to the usually staid streets of London; and even London’s Metropolitan Police, with their own reasons for chasing after Annie, joining in the pursuit.

From Butler’s Wharf to Hackney to Soho, the battle rages. With the help of tough, ex-mercenary Ben Johnson, Devlin manages to keep one step ahead of everyone in his fight for escape, until a betrayal leaves him with only one way left to survive. Devlin must turn all of Annie’s enemies against each other and wage one final, desperate stand—but not before he faces one last bitter truth.