[7][8][9][10] Corporal Park Dong-hyuk is a newly enlisted sailor in the Republic of Korea Navy assigned to the patrol vessel PKM 357.

The South Korean Ministry of Defense is notified about North's strategy but is again ordered by the Blue House to not engage first.

The ensuing battle severely cripples both ships before reinforcements from the South arrive and force the North's patrol vessel to retreat.

The movie ends with the real life surviving crew members reminiscing about their colleagues with photos of those who perished.

Kim said, "I believe that 3D visuals would enable viewers to feel the pain and fear felt by the (men) in a more effective and immersive way.