Video footage captures the intense moment when two insurgents in Iraq carry a wounded staff sergeant toward safety. Billy Lynn (Joe Alwyn), a courageous soldier, steps in and bravely shoots the insurgents, racing to save the sergeant amidst a barrage of fire. This act of valor quickly makes Billy a national hero, as the dramatic footage spreads like wildfire through the media.
Fast forward to Thanksgiving Day, 2004, and Billy joins his Bravo Squad—comprised of Sgt. David Dime (Garrett Hedlund), Mango (Arturo Castro), Foo (Mason Lee), Crack (Beau Knapp), Lodis (Brian "Astro" Bradley), Holliday (Ismael Cruz Cordova), and Skyes (Barney Harris). The squad is in the midst of a promotional tour alongside their producer Albert Brown (Chris Tucker). They receive a high-profile ride from Dallas Cowboys representative Josh (Ben Platt) in a limo, highlighting their newfound fame.
Just two days prior, the squad attended the somber funeral of their fallen sergeant, Virgil "Shroom" Breem (Vin Diesel), the very soldier Billy attempted to save in that heroic moment. After the funeral, he returned home to his mother (Deirdre Lovejoy) and sisters Kathryn (Kristen Stewart) and Patty (Laura Lundy Wheale), reminding us of the personal sacrifices that come with serving their country.
In the limo, Albert reveals he’s negotiating a deal for a film that dramatizes their experience, jokingly mentioning that Hilary Swank is interested in playing Billy—a fact that elicits laughter from the squad. During this time, it becomes clear that there is more to Billy's past; both Dime and Shroom are aware of his troubled history, stemming from a car accident involving his sister, Kathryn, which led him to take drastic measures to protect her dignity.
Amidst the celebrations, the Bravo Squad recalls their harrowing experiences, like raiding a compound where they confronted insurgents in front of their families. Billy vividly remembers the piercing gaze of a child who lost his father due to their actions, adding layers of complexity to their supposed heroism.
As the squad prepares for a halftime show at the football stadium, they are greeted with a mix of admiration and controversy from fans. During a press conference, Billy catches a smile from cheerleader Faison (Makenzie Leigh), leading to a brief but emotional encounter. He confesses to her that it feels surreal to be lauded for what he considers the worst day of his life. Following their intimate moment, they find solace in each other, even amid the chaos.
Nostalgia washes over Billy as he remembers moments with Shroom, who always brought warmth and wisdom to his teammates. Another poignant memory of a family dinner quickly devolves into an argument, exacerbating the tensions surrounding the reality of war as they witness news coverage on the television.
As the halftime show approaches, a mix of excitement and anxiety fills the air. The squad dons camouflage uniforms, and the electrifying atmosphere takes its toll on some members, particularly Crack, who grapples with PTSD. During Destiny's Child’s performance of “Soldier,” Billy walks the field, embodying both pride and turmoil.
The narrative shifts back to the fateful day of October 23rd, where the sacrifice is starkly illustrated. Shroom, having sustained grave injuries, is a haunting image as Billy fights not just for survival but for the bond they share. Fueled by desperation, he overcomes the enemy, but his victory feels hollow when he finds Shroom has succumbed to his injuries.
Later, the squad meets with Norm Oglesby (Steve Martin), the Cowboys owner, who disappointingly slashes the compensation for their film portrayal. The revelation leads to outrage among the squad, especially from Dime, who forthrightly rejects the new terms. Oglesby's words, suggesting their story now belongs to America, further alienate Billy, who refuses to have his truth exploited for profit.
Unfortunately, their promotional tour takes a dark turn when they face aggression from the stage manager, igniting Billy's deeper struggles with PTSD. As they prepare to return to serve, a significant moment arises between Billy and Faison, embodying unfulfilled wishes and heartfelt farewell as they share a kiss.
In a final emotional farewell, tension builds between Billy and his family. Though he yearns to comfort them, the path ahead feels predetermined, culminating in a bittersweet reprieve. He climbs into what represents another deployment—a humvee—reflecting on his experiences and the voices lost along the way. As they all express their love for Billy, their departure marks the continuation of his haunting journey back to war.
