Former super-soldier and master thief, Fantomex, stumbles upon one of his clones, Cluster, breaking into museums to steal priceless artifacts. Outwitted and intrigued, Fantomex decides to beat Cluster at whatever game she's playing. But something is different about these artifacts: they've all been infused with nanotechnology, very similar to the kind that originally created Fantomex. And they aren't the only ones looking for them... Their other clone, Weapon XIII, is on the hunt too. The cat-and-mouse heists test their burglary skills and push the boundaries of how much they can trust one another. When it turns out that they're the pawns in an even deadlier game, all hell breaks loose - and these clones always play to win.