In the imaginary town of Garrison, New Jersey, nestled just across the Hudson River from New York City and near the George Washington Bridge, many residents are part of the NYPD. Among them, local sheriff Freddy Heflin (Sylvester Stallone) harbors a secret love for Liz Randone (portrayed by Annabella Sciorra), whom he saved from a horrific car accident—a heroic act that cost him the hearing in one ear and ultimately barred him from becoming a New York City cop, unlike his peers, including Liz's abusive husband Joey Randone (played by Peter Berg).
One fateful night, Murray "Superboy" Babitch (played by Michael Rapaport), the nephew of Lt. Ray Donlan (Harvey Keitel), leaves a bachelor party at Scores in Manhattan. As he drives over a discarded beer bottle, he gets his car sideswiped by a couple of young African-American teens. In an attempt to force them off the road, Babitch finds himself believing they are armed when one passenger points something at him—leading to a tragic and fatal exchange of gunfire, resulting in the deaths of both teens.
In the aftermath, during the investigation, Jack Rucker (Robert Patrick) is caught in a desperate act, attempting to plant a weapon in the teens' vehicle to justify Babitch's actions. Amid a chaotic scene, a paramedic intervenes, seizing the weapon and tossing it over the bridge, which leads to a brief altercation that is quickly subdued.
Fearing for his future after shooting unarmed teens, Babitch is persuaded by Donlan to stage his own suicide, creating a web of deception. However, the presence of Internal Affairs investigator Lt. Moe Tilden (Robert De Niro) complicates matters as he seeks Heflin's insights into the rampant corruption permeating the NYPD officers in Garrison. Although initially hesitant to cooperate out of fear, Heflin finds himself embroiled in a deeper conspiracy.
While Tilden faces pressure to end his investigation due to departmental connections with corrupt officers, the cover-up surrounding Babitch threatens to unravel. Donlan, aware of the imminent danger, makes the grim decision to eliminate his nephew. During a raucous party at Donlan's home, chaos ensues as Babitch tries to escape amid gunfire, eventually seeking sanctuary at Heflin's residence but is forced to flee once more.
As the night unfolds, tragedy strikes as Joey Randone suffers a deathly fall from a rooftop after a confrontation with a suspect, exacerbated by Donlan, who turns a blind eye in pursuit of revenge. Realizing his mistakes, Heflin seeks redemption but discovers the extent of the corruption within his community too late.
Following a gripping series of events, Heflin steals critical NYPD files in a desperate bid to unravel the corrupt web. After confronting his friends about their misdeeds, he pushes to protect Babitch from being silenced, leading to a violent showdown at Donlan's house. In a fierce battle, Heflin and his ally Gary "Figgsy" Figgis (Ray Liotta), confront the corrupt officers. The climax results in bloody vengeance, where Heflin stands over the dying Donlan and retorts with a profound, > "I can't hear you, Ray," signifying his moral victory amidst the chaos.
In a dramatic conclusion, Heflin and Figgsy ensure that Babitch is brought to justice, successfully delivering him to Tilden. As the dust settles with the investigation yielding indictments against the corrupt officers, Heflin reflects on the NYC skyline from across the river, symbolizing his renewed purpose, ready to face the challenges ahead, as he returns to work following a call about a jack-knifed truck.
