The King 2 Hearts - Season 1 (2012)

Lee Jae's poor sense of judgment drives him to create two different conflicts. However, a bond between him and Hang Ah forms as they start on a quest to fix both situations.

When training concludes, Lee Jae Ha pulls one more prank before heading back to South Korea. News hits that Kim Hang Ah is a bridal candidate, but Lee Jae Ha hopes to fix the problem by declaring his love for her.

Unfortunately, Lee Jae Ha's plan proves itself to be conterproductive and ends up hurting Kim Hang Ah. Though he comes to realize that he truly has feelings for he, Kim Hang Ah is planning to seek out revenge on him.

The King makes a surprise decision.

The king suddenly passes away and it forces Lee Jae Ha into the position of the country's only leader. While he learns to handle the royal duties, Chief Secretary Eun suspects that the king's death was not an accident.

Was a death an accident - or something more sinister?

As Kim Hang Ha returns to North Korea, the Queen Mother expresses her disappointment in Lee Jae Ha's decision to end the engagement. After gaining access to his brother's diary, Lee Jae Ha discovers the truth about Club M's involvement in the training camp attacks.

After her trip to the hospital, it is revealed that Hang Ha's pain was caused by a miscarriage. While this news is able to motivate Jae Ha into action, John Mayer has hatched a diabolical plot to destroy him.

Jae Ha finds himself in a life or death situation.

Upon opening the box, Bong Gu finds a video that shows Jae Ha and his girlfriend in a deadly confrontation. Jae Ha and Hang Ah announce their participation in the WOC and end up drawing the US as opponents.

Shi Gyung is able to hold Bongbong at the royal palace, but finds it difficult to keep her detained. Jae Ha and Hang Ah have a dilemma on their hands when Kang Suk gets them into a brawl with the US team.

The Korean united team finds itself up against an impressively strong US team in the WOC. In order to win the first round, the Korean team decides that it must take extreme measures.

Hang Ah's engagement party is a wild success. But the hangover proves grueling.

Although Hang Ah and the queen mother are held captive in China, Hang Ah stays behind so she can save the queen mother. In the mean time, Jae Ha's hypnosis reveals a terrible truth regarding the day of the king's death.

Will John Mayer be defeated?

While they manage to capture John Mayer, he is able to call in a few favors and is eventually released. The overall mood intensifies as North Korea, South Korea and the United States prepare themselves for battle.

Jae Ha and Hang Ah try to bring unity between North and South Korea and plan to get married. John Mayer is held accountable for his crimes and has to face prosecution.