为纪念抗美援朝战争胜利70周年，《志愿军》三部曲将全景式、多维度立体展现这场新中国的立国之战。电影《志愿军：雄兵出击》为该系列首部。1949年建国初期，新中国面临“内忧外患”局面。朝鲜内战爆发以来，美军屡在中朝边境挑衅，平民惨遭轰炸。为了维护来之不易的和平、为了世代长久的安稳，1950年10月，中国人民志愿军入朝，“抗美援朝”战争拉开帷幕。这是一场“举国之战”——朝鲜战场，即使军备实力对比悬殊，我军却用壮烈牺牲换回节节胜利；外交舞台，中华人民共和国代表团首度亮相联合国，中国新声赢得国际敬畏。新中国，寸土不让扬国威；新青年，意气风发保家国。
一个刚出生的儿子，整天待在房间里，不知道怎么出来。新妈妈想尽一切办法改善与儿子的关系，但情况似乎并没有好转。有一天，她得到了儿子的秘密帮助，两人的关系开始好转
一位光鲜亮丽的老处女，一对三十年未曾与异性发生过关系的男女。老天爷看不下去了，就让这对男女发生了关系……一位失意的家庭主妇，一位男房客，偷偷在公寓里安装了摄像头。然而，公寓老板察觉到男房客做了坏事，便用钥匙打开了房客房间紧锁的门，闯了进来
Dong-hyeon and Yong-joon coincidentally meet at an acting audition. A strange gentleman appears in front of the both of them who are sick of failing at these auditions and suggests something to them. Meanwhile, Ayaka comes to Korea with her best friend Saori to meet her fiancé, Min-joon's parents. She runs into Dong-hyeon and Yong-joon who ask her to star in something and although she's not up for it, she's ushered into doing it by Shiori who loves handsome men. They move locations to a run-down facility and suddenly all exits are blocked and the four of them are trapped. Ayaka looks for an exit but instead finds cameras put up everywhere and gets the feeling that they are being watched. She suspects Yong-joon and Dong-hyeon of being behind this. Suddenly, young men overdosed with gas appear out of no where and try to rape Ayaka and Shiori. Dong-hyeon and Yong-joon fight them to save the women. All this is recorded live and sent to a crowd who is watching from a theater,enjoying it. Yong-joon and Shiori escape into another room but soon they are gassed and they suddenly want each other so bad. Then Shiori loses her mind and kills Yong-joon. Min-joon is watching this amongst the crowd at the theater. What happened between Ayaka and Min-joon...?
