Gyeong-ah works as a caregiver and lives alone. The only one she can rely on is her daughter, Yeon-su, but it's hard to see her after she moved out on her own. Meanwhile, Yeon-su, who is suffering from her ex-boyfriend, Sang-hyun, argues with him again and visits her mother’s house. After Yeon-su left, Gyeong-ah receives a shocking message from a stranger.。一场突如其来的大火,在深夜降临在城市边缘的山林里。火势肆虐,山林化为火海;消防官兵紧急出击,奋战第一线。然而山路崎岖,大火封道,物资难以及时送达;前有大火,后无补给,山林危急,城市危急,人民危急。山林大火牵动人心,一群机车娃子,穿过重重险阻,将物资送往前线,一道道希望的曙光被点亮。越来越多的人加入进来。。