One fateful night, thief Deshaun Stagg (LaDell Preston) finds himself fleeing through the streets of Georgetown, Washington, D.C., only to meet his demise at the hands of a mysterious man wielding a metal briefcase. Witnessing this shocking crime, a pizza deliveryman is also caught in the crossfire but, unfortunately, ends up in a coma. The very next day, a young woman is struck down by a Washington Metro train, presumed to have taken her own life.
Congressman Stephen Collins (Ben Affleck) is devastated to discover that the deceased woman was Sonia Baker (Maria Thayer), a devoted chief researcher on his team. As a military veteran, Collins is spearheading an inquiry into PointCorp, a controversial private defense contractor embroiled in questionable mercenary operations. This firm stands as the largest beneficiary of the Department of Defense’s trend of outsourcing crucial security tasks. Overwhelmed with grief at the next hearing, Collins breaks down while announcing Sonia's untimely death, prompting media speculation about their romantic involvement. A party boss advises him to halt his investigations into PointCorp.
Collins confides in his old college buddy, Cal McAffrey (Russell Crowe), an investigative journalist for the fictional Washington Globe. He admits to having had an affair with Sonia, claiming her cheerful video message received on the morning of her death indicates she was not suicidal. Meanwhile, Cal's own affair with Collins' wife, Anne (Robin Wright), complicates matters further, as Anne already knew about the relationship.
Della Frye (Rachel McAdams), a political reporter and Capitol Hill blogger for the Globe’s online section, uncovers that Sonia's death took place in one of only three blind spots within the Metro's CCTV system. Cal connects the dots between the recent shootings and Sonia's death after he discovers her number on the deceased Stagg’s phone. He receives the phone through a contact at the morgue.
Shortly after, Cal is approached by a homeless girl named Mandi (Sarah Lord), who sells him photographs taken by Stagg. These images not only show a gun and unusual handmade bullets hidden inside the metal briefcase but also capture Sonia with a well-dressed man. As Della attempts to speak with the pizza deliveryman at the hospital, tragedy strikes again when he is shot dead by an unseen sniper, just as she reaches the scene. Reviewing CCTV footage of the Metro platform where Sonia died, Della identifies the man who murdered the deliveryman as someone she has seen before.
It comes to light that PointCorp stands to make billions from its mercenary operations both abroad and within the U.S. Collins publicly accuses PointCorp of employing retired U.S. soldiers, increasing profit margins while sacrificing the lives of those who served. He shares his shocking findings with Cal, revealing PointCorp’s near-monopoly on government surveillance and defense contracts. The intricate web of favoritism leads back to PointCorp controlling all aspects of American homeland security.
An anonymous insider provides Cal with details about Fred Summers, a pivotal figure connected to the suspected assassin. Cal races to investigate but finds himself facing the assassin instead, who claims to be Fred's roommate and threatens him. Ultimately, the would-be killer escapes as Cal contacts the police. The investigation takes a darker turn when they learn that Mandi has been murdered too.
With the assistance of Sonia's flatmate Rhonda Silver (Katy Mixon), Della identifies the man from the photographs as Dominic Foy (Jason Bateman), a PR executive at PointCorp. Rhonda discloses to Della and Cal details of a complicated love triangle involving Sonia and Collins, while Della and Cal question her reliability. As other media outlets become aware of the events, editor Cameron Lynne (Helen Mirren) expresses her frustration over the missed opportunity for the Globe.
Determined, Cal entraps Foy into discussing Sonia, capturing their conversation on tape. In a shocking revelation, Foy discloses that Sonia was spying on Collins for PointCorp and had fallen in love with him, carrying his child at the time of her death. Cal plays this tape for Collins, unveiling the disturbing truth of possible collusion with PointCorp. Collins, consumed by rage, lashes out at Foy and blames Cal for his own infidelity with Anne.
As Cal digs deeper, he confronts Congressman George Fergus (Jeff Daniels), who had pretended to support Collins while sabotaging his investigation. After a tense exchange, Collins and Anne visit the Globe’s offices, wherein Collins discusses his findings and hints at the depth of PointCorp’s involvement in Sonia's death. Anne casually mentions Sonia's secret $26,000 monthly payment from PointCorp, adding another layer to the conspiracy.
Cal soon realizes crucial information might have been withheld from Collins. After recognizing the assassin from a military group photo featuring Collins, Cal rushes to confront him. Collins admits to hiring the assassin, once a soldier whose life he saved, for surveillance on Sonia. When the police arrive to apprehend the assassin, he is fatally shot before he can harm Cal.
Back at the Globe, Cal feverishly types the story that will expose Collins’ involvement in the intricate web of killings, leading to his arrest for the deaths of Sonia, the thief, and others. In a gesture of professionalism, he credits Della prominently on the byline, allowing her to submit the ground-breaking article for publication.
