Sprinter : Underworld

during a routine rush-hour commute, monstrous creatures attack a seoul metro line 2 train, wreaking havoc and killing passengers. among the survivors are three teenagerssprinter dan, streamer yeona, and their friend jitaewho attempt to escape, only to find all exits destroyed. as they navigate underground tunnels, they learn dans mother is trapped at noryangjin station. their mission shifts from survival to rescue. can they save her before its too late?