YMS 504 was one of the best light war vessels of South Korean navy at the time of the Korean War (1950-1953). When the war breaks out, the ship ventures over the enemy's line and blows up an enemy fortress. And on its way back, it also sinks a boat of the enemy.
| Actor | Role |
|---|---|
 Park Nou-sikNot listed | Not listed |
 Jang Dong-hwiNot listed | Not listed |
 Kim Hye-jeongNot listed | Not listed |
 Bang Seong-jaNot listed | Not listed |