After the thefts of famous paintings, a group of the world's largest museums hire John (J.T.) Ryan to catch the criminals behind the robberies. Ryan, a former Green Beret commander and a decorated war hero, is now one of the USA's best investigators. Ryan teams up with Rachel West, a CIA operative, to solve the case. As Ryan dives into the investigation, which takes him on a dangerous journey across Europe and Asia, he realizes the elusive master thief he's after is also a cold-blooded killer. A killer willing to do anything to get their way. Can Ryan catch the criminal mastermind behind the art thefts? Or has he finally met his match and is murdered in the process?