A notorious dirty cop makes an honest attempt to catch a serial killer who even murdered his own parents.

In 1592, admiral Yi Sun-sin and his fleet face off against the might of the invading Japanese navy and its formidable warships. As the Korean forces fall into crisis, the admiral resorts to using his secret weapon, the dragon head ships known as geobukseon, in order to change the tide of this epic battle at sea.

A veteran gangster, Hee-su, is looking to retire from his crime family in the violent port town of Kuam, Korea. But an unexpected betrayal leads him down a bloody path where he gets caught in the middle of a mob war with deadly consequences.

Set in North Korea, one of the most secretive and oppressive countries in the world- Gi-cheol's family is overjoyed when he gets a job as a customs officer at a checkpoint near the border. He was by-the-books man who never took bribes from the smugglers and was loyal to their great leader, determined to weed out any traitors who were against the regime. But one day, when one of the smugglers sets him up for bribery, Gi-cheol and his family have no choice but to escape the country and cross the border… whilst the very comrades he trusted turn their gun barrels at him.

Admiral Yi Sun-sin faces a tough challenge when he is forced to defend his nation with just 13 battleships against 300 Japanese enemy ships in the Battle of Myeongryang.

Kyung-chul is a dangerous psychopath who kills for pleasure. Soo-hyeon, a top-secret agent, decides to track down the murderer himself. He promises himself that he will do everything in his power to take vengeance against the killer, even if it means that he must become a monster himself.

Ancient Korea, 1506. The tyrannical King Yeonsan-gun of Joseon is overthrown by his half-brother Jung-jong, whose reign begins with a blood bath. Over the years, traitors plot against him, sinking the kingdom into chaos. In 1528, frightened rumors come to royal palace, regarding a mysterious creature, known as Monstrum by the peasants.