An American ballistics specialist finds himself ensnared in a web of intrigue while in Turkey, as Nazi agents close in on him. Although arrangements for a secure journey back home by ship are made, he quickly realizes that danger lurks among the passengers. With time running out and his adversaries on his trail, he must navigate a treacherous environment where trust is elusive and survival is uncertain. Tension escalates as he grapples with the threat to his life, leading to a gripping race against time to escape his relentless pursuers.