抗大一分校的17岁新学员苏凡（敖子逸 饰），千里迢迢从福建龙岩来到沂蒙山腹地的学校驻地报到。报到的第二天就遭遇了日本军数万人的“铁壁合围”大扫荡突袭，通过突围战斗的洗礼，苏凡成长为一名真正的战士。
故事围绕驻扎伊拉克的两名士兵展开，队友受伤，神秘狙击手的穷追不舍，矮墙铸成最后一道生命线。两人将何去何存？一场猫鼠游戏在所难免。
1945年，在二次世界大战的战火肆虐中，安娜和罗勃在德勒斯登相遇。一个是德国医院院长的掌上明珠，在家人以及未婚夫的呵护下成长，有着救助身旁所有人的一颗善良的心。另一个是英国皇家空军的轰炸机机师，在一次任务失败中坠毁德勒斯登。安娜救了他的性命，安娜善良温暖的心也打动了他。就这样慢慢地，两颗心越来越靠近… 在此时，发现了罗勃真实身分的安娜，是要选择罗勃，还是要接受未婚夫的求婚？
抗日战争时期冀中平原地区中国共产党领导抗日军民与日寇、汉奸殊死搏杀。年轻的八路军干部马英奉命回到家乡肖家镇，发动群众，组织抗日队伍。汉奸杨百顺、刘中正和日军大队长中村密谋挑起百姓自相残杀，一场血腥屠杀即将爆发……
The Moliere players are in their dressing room, getting ready to go on set. One actor mentions to another that his face reminds him of an opportunist turncoat he knew when he was in the Resistance. He then relates the adventure that he had in the Resistance, running an illegal radio station and dodging the Nazis.
该片讲述日本太平洋战场失利，急需在中国大陆打通一条交通线到南洋，与日本海军连接起来。阜阳地理位置重要，想要打通这条交通线，必须拿下阜阳。阜阳地区汇聚的各方势力，为抗日军侵略而抛头颅洒热血，最终突破层层封锁，打了一场痛歼日寇的漂亮保卫战。
1947年秋，我人民解放军转入战略反攻，部队首先攻打石家庄外围，诱敌增援，趁石家庄兵力空虚再围城。国民党守军罗军长（唐高齐 饰）却早已料到我军调虎离山之计，决不冒然发兵。我军钟天民（王玉孝 饰）旅长加大攻击徐水力度，而敌就是不上钩，我军佯装西撤，狡猾的敌人终于出来了，我军趁势围攻石家庄。连长潘有财（冯恩鹤 饰）被燃烧弹击中，仍抱起炸药包冲向敌坦克，战士孙永（刘继忠 饰）夺取敌人机枪，冲上制高点，最后含笑牺牲在连长怀里。当地人民群众掀起了支援前线的热潮，组织担架队、小车队，运伤员送弹药，民兵队长苏月琴（赵娟娟 饰）带领民兵支援前线，石家庄解放指日可待......
1947年春，我军与国民党在鲁南将展开战略决战，大战前夜，烟庄正举办一个没有新郎的特殊婚礼，春英（刘琳 饰）抱着一只公鸡替当兵的小叔子娶月芬（李念 饰）进了门。男人们大都上了前线，妇救会长兰花（范志博...
根据韩战期间真实战事改编。1950年6月25日，北韩挥军越过三八线突袭南韩，三日攻陷汉城（今首尔），战线不断南进。在美军及联合国军支援下，南韩军逆势反击。美军指挥官麦克亚瑟提出代号为「铁铬行动」的仁川登陆计划，该计划急需一支大队的兵力从侧翼阻击扰敌、声东击西，通过长沙里切断北韩军的补给线。 由于任务本身极其艰钜，加上南韩国军当时兵力薄弱，无法抽调足够正规军支援，军方不得不把这项任务交付给772名学生兵执行，这些学生兵平均年龄只有17岁，仅仅接受了两星期的军事训练，在毫无实战经验的情况下投身战场。行军路上固然杀机重重，战友内部也诸多衝突，年少气盛，迸发出各种角力。 仁川登陆战前夕，长沙里登陆任务如期执行，这群徒有一腔热血但战力薄弱的学生们，无可避免地接受命运中最残酷的考验：穿越炮火与海浪，浴血长滩，馀下部队身陷敌军重重围剿，直至弹尽粮绝，挣扎于阵亡与倖存的分界线上… Based on the incredible true story of Jangsari Landing Operation. When North Korea invades South Korea on June 25, 1950, they pushed South Korea and its ally US Army to the southernmost city. U.S. General MacArthur planned Operation Chromite, which would see the joint allied forces to take back a strategic location of Inchon and in order for it to succeed, he needed a small battalion to flank the North Korean army and eliminate their supply line at Jangsari beach. Having lost his family on his retreat away from North Korea before the War, a model student Choi Sung-pil enlists in the army to fight for the South. Ki Ha-ryun is a rebellious youth from the South who volunteers to fight in the war. All of the 772 students and youths are like them who are barely out of school with only 2 weeks of boot camp training. Task force commander Captain Lee Myung-jun knows that it’s a long shot, but he has no choice but to lead them into a crucial mission. Meanwhile, US war correspondent Maggie braves the dangers of the battlefield to report on the war in the frontlines. She feels empathy for the Korean students who must go into battle on behalf of the veteran soldiers for their country, and tries to do what she can on her end to rescue them. With little ammo, scant food supplies and raggedy weapons, can the students successfully carry out their mission and return home safely?
片名《Tubelight》的意思来自影片中的一段台词：“信心就像是一盏日光灯，点亮它需要花一些时间。但一旦当它点亮，它会照亮周围的一切。”
