Ethan is alerted a Russian bio-chem expert, Nekhorvich, has entered the U.S, to deliver a new virus, Chimera, and it's cure, Bellerophon. The IMF is worried the virus is out and that a rogue agent, Sean Ambrose is behind it. The IMF assigns Ethan to recover the virus and assigns two team members. But the IMF needs a third person. You (a professional thief) because you're Sean's ex. One night, Ethan interrupts you just before steal a million-dollar necklace in Seville, Spain, during a party.