The retired King of Killers, codenamed "Zero," faked his death in a planned explosion to escape his old life and lay low as a food delivery driver. On a delivery run, to keep his five-star rating, he subdued a stalker attacking A-list star Scarlett in under three seconds. She then posted a $15 million bounty to marry him, blowing his fake-death cover — with Interpol and old enemies closing in. His ex-right-hand man Seven tried to protect him but caused more chaos. Forced to become Scarlett's bodyguard, Ethan foiled a deadly gala attack. When his former comrade Ghost betrayed him, he crushed the rebellion at headquarters, with Scarlett filming a documentary along the way. In the end, he gave up his crown as King of Killers and found new meaning in ordinary, warm moments with Scarlett.