Mallory Kane, portrayed by Gina Carano, walks into a diner in Upstate New York where she is unexpectedly joined by Aaron, played by an as-yet-unnamed actor. Their interaction quickly escalates as Aaron insists she gets into his car. Mallory's refusal ignites a fierce confrontation between the two, but thanks to the timely intervention of Scott, portrayed by [Michael Angarano], she manages to escape after breaking Aaron's arm. As they flee together, Mallory shares her harrowing experiences from the past week, which are intertwined with flashbacks of the events leading up to their current situation.
Mallory explains to Scott that both she and Aaron are employees of a covert company involved in sensitive operations. Just one week prior, Mallory's ex-boyfriend, Kenneth, played by Ewan McGregor, attended a critical meeting in Washington, D.C. organized by a government agent named Coblenz, portrayed by Michael Douglas. During this meeting, Kenneth’s firm was tasked with rescuing a hostage named Jiang, held in an apartment in Barcelona. Alongside them was Rodrigo, a Spanish contact portrayed by Antonio Banderas.
In Barcelona, Mallory’s team, which includes Aaron, manages to successfully rescue Jiang despite facing significant hurdles. Once back in the United States, Kenneth approaches Mallory with a seemingly innocuous job—acting as the fictional wife of British MI6 agent Paul, played by Michael Fassbender, during a mission in Dublin. Reluctantly, Mallory agrees and attends a high-profile party at Russborough House with Paul, who meets his contact Studer while Mallory observes from a distance.
Things take a dark turn when Mallory follows Paul into a barn, only to discover Jiang’s lifeless body clutching a brooch—a token that Kenneth had instructed her to wear for identification. Realization dawns upon her that she has been set up. Upon returning to their hotel room, an altercation occurs between Mallory and Paul, resulting in her taking decisive action to defend herself by killing him. Following the destruction of their relationship, Mallory learns that Kenneth is on the other end of a call that she returns, but she abruptly hangs up, realizing the danger she's in.
After escaping from both Kenneth's agents and a chaotic police confrontation, Mallory finds refuge with her father, John Kane, played by Bill Paxton. But this brief solace is shattered when Kenneth and his henchmen arrive under false pretenses to question him about Mallory’s whereabouts. In a dramatic turn of events, despite Aaron’s realization of Mallory’s innocence too late, he is fatally wounded while trying to protect her.
The stakes rise when Mallory meets with Coblenz; he shares suspicions about Kenneth’s treachery and provides her with information about his whereabouts. With renewed purpose, Mallory heads to Mexico, where she confronts Kenneth on a desolate beach, leading to an intense showdown. As Kenneth is cornered, he reveals the depths of his betrayal, confirming that the entire operation was designed to frame Mallory for Jiang's murder and eliminate her as a threat.
In a poignant moment of vengeance, Mallory leaves Kenneth to face his fate in the rising tide, a testament to the betrayal she has endured. Her journey doesn't end there; shortly after, she tracks down Rodrigo, indicating her relentless pursuit for justice against those who manipulated her, suggesting that her story of retribution is far from over. The film concludes as she confronts Rodrigo, poised to eliminate the last thread connecting her to the elaborate conspiracy against her, reflecting her evolution from victim to a figure of strength and determination.
