Selina Kyle, also known as Catwoman, decides to steal a priceless jewel. This heist puts her squarely in the crosshairs of both powerful criminal syndicates and international law enforcement. The jewel, a green emerald, is not merely an opulent gem, but also the key to a devastating weapon with the power to annihilate cities. Catwoman's theft disrupts the plans of the criminal organization Leviathan, which intended to sell the emerald in a high-stakes auction to fund their global operations.

As Leviathan's leader, Black Mask, becomes enraged by the theft, he enlists a team of deadly assassins to retrieve the emerald and eliminate Catwoman. Meanwhile, Interpol, led by the determined agent Julia Pennyworth, and Batwoman, a vigilante also pursuing Catwoman, join the fray. The chase leads Catwoman through a labyrinth of betrayal and shifting allegiances. She must use her skills of stealth, cunning, and combat to survive while being pursued by enemies on all sides.