In the United States Marine Corps base at Guantanamo Bay, Cuba, two U.S. military lawyers, Lieutenant Daniel Kaffee and Lieutenant Commander Joanne Galloway, are sent to defend two Marines, Lance Corporal Harold W. Dawson and Private First Class Louden Downey, who are accused of murdering one of their own, Private William Santiago. The prosecution's case is led by Colonel Nathan R. Jessep, a strict and intimidating officer who has no qualms about using aggressive tactics to secure a conviction. As Kaffee and Galloway begin their defense, they discover that the two Marines were subjected to a hazing ritual known as "Code Red," which was ordered by their superior, Lieutenant Jonathan Kendrick. The lawyers believe that this hazing may have contributed to Santiago's death, but Jessep is adamant that it was just a harmless prank gone wrong. Kaffee and Galloway are initially at odds over how to approach the case, with Kaffee wanting to negotiate a plea deal and Galloway advocating for a more aggressive defense. However, as they delve deeper into the investigation, they begin to uncover evidence of a larger conspiracy involving high-ranking officials who may have been aware of the hazing and chose to turn a blind eye. As the trial approaches, Kaffee and Galloway must confront their own biases and limitations in order to build a strong defense for their clients. Meanwhile, Jessep becomes increasingly agitated and aggressive, convinced that his reputation is being threatened by the lawyers' attempts to discredit him. The film's climax features a dramatic courtroom confrontation between Kaffee and Jessep, during which the former delivers a powerful speech about the importance of integrity and accountability in the military. The outcome of the trial is left uncertain, but the real victory may be the personal growth and self-awareness that Kaffee and Galloway experience as they navigate the complexities of their case.