Set during the Korean War, the film depicts the atrocities of battle. Sgt. Garth (Barron), an egomaniacal, blood thirsty leader, neglects to tell his soldiers that there has been a cease fire. The Sergeant sends his unit into an enemy bunker, where they are fiercely attacked by the enemy. The few who survive secure the bunker, and Garth attempts to take credit for their actions. Further chaos ensues, resulting in the deaths of many in the platoon, as well as the mortal wound to the Sergeant himself.
War Is Hell was the second of two features (along with Cry of Battle) playing at the Texas Theatre in Dallas, Texas on November 22, 1963. After his alleged shootings of President John F. Kennedy, Governor John Connally, and Dallas patrolman J.D. Tippit that day, Lee Harvey Oswald snuck into this theater without paying. After box office cashier Julie Postal received a tip on Oswald from nearby shoe store employee John Brewer, she called Dallas Police and Oswald was arrested before the movie ended. Oswald was fatally shot two days later while being transferred to another jail by club owner Jack Ruby.