female Marine who goes into hiding but only after watching her sister and fellow-Marine die. As a consequence, Sgt. Lee's squad is arrested for insubordination and rounded up to be shot. Only the timely intervention of General Park commutes their sentences to carrying out the sabotage mission themselves. They were to consider themselves dead until they were able to destroy the supply depot. Again infiltrating into enemy territory they again enlist the help of Jung-hwa and her gang but most of the guerrillas are killed and their base destroyed after Comrade Woncheol employs ruthless tactics. Cheon Song-il is separated from his KPA comrades as he hides from his former squad mates that find him anyway and are disgusted to find him in a KPA uniform. But his life is spared because he helped the guerrilla's children hide from the KPA. Eventually Sgt. Lee and Pvt. Choi are captured, but escape and complete their destruction of the Supply depot. In the melee Pvt. Choi Dan-young is shot and killed by Lt. Lee, but Choi is able to ignite the explosion that destroys the depot. Lt. Lee is caught in the explosion, while Sgt. Lee can only watch in horror. Lt. Lee survives, however, thanks to the concern of Comrade Yong-taek and Song-il (who is back with the KPA after being exchanged for Pvt. Yang Sanggil who was captured while trying to unsuccessfully ignite the explosion the first time). The squad and Sgt. Lee are separated and the squad is captured by the North Koreans who send them to a concentration camp. The camp is run by a female state agent, Yoon Jeongin, who manipulates the prisoners to turn on themselves for her entertainment. Sgt. Lee has already given himself up, eager to join his men in confinement to help them devise a way to escape. Sgt. Lee's second-in-command, Sgt. Park Il-Kwon (Kim Roi-ha), is set up to lead the prisoners, and is forced to betray some of the prisoners attempting escape. This earns the contempt of the 1st squad's men, while Lee is less convinced that Park was working in self-interest. The camp director and the state agent in-charge have set up brutal boxing matches to entertain themselves and the men. Meanwhile, Pvt. Park Joo-yong (Ryu Sang Wook), 1st squad's medic is found to be useful by the KPA and is forced to serve in the KPA 2nd Division, 17th Reg.