Sprinter: Underworld

Sinopsis

During a typical rush-hour journey, a Seoul Metro Line 2 train is suddenly attacked by monstrous creatures, causing chaos and fatalities among the passengers. Three teenagers, sprinter Dan, streamer Yeona, and their friend Jita, are among the survivors. They try to escape but discover that all exits are destroyed. As they navigate the underground tunnels, they learn that Dan's mother is trapped at Noryangjin Station.