After his mother is brutally murdered in front of him by the Thai criminal syndicate Cheongbang, Lee Soo Hyun (Lee Jun Ki) is adopted into NIS agent Kang Jung Ho's family. Together with Kang Min Gi (Jung Kyung Ho), Jung Ho's son, Soo Hyun becomes an NIS agent. When Soo Hyun met Suh Ji Woo (Nam Sang Mi) they were about twelve years old and has another fateful encounter with her 13 years later. Together they had promises for the future. One day, Soo Hyun leaves for an operation dealing with the Cheongbang, only to return in failure because of the resurfacing terrible childhood memories of when he was in Thailand. The chief of NIS agents, Jeong, proposes to the distraught Soo Hyun to infiltrate the Cheongbang. Through Chief Jeong's proposition, Soo Hyun becomes an undercover NIS agent after staging his death. Hiding his past, Soo Hyun infiltrates the Cheongbang with revenge in mind, leaving Ji Woo behind. Under the pseudo-name of Kay, he passes through the backstreets of Bangkok. What Soo Hyun didn't know was Ji Woo is the daughter of the same villain, who killed his mother and father.

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  Lee Joon Gi (Lee Soo Hyun)

  Main Role

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  Jung Kyung Ho (Kang Min Ki)

  Main Role

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  Nam Sang Mi (Soo Ji Woo)

  Main Role

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  Kim Kap Su (Jung Hak Soo)

  Supporting Role

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  Choi Jae Sung (Mao)

  Supporting Role

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  Choi Ji Ho (giraffe)

  Supporting Role

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• Mar 19, 2012 16 of 16 episodes seen

  angeltopaz
  1 of 1 people found this review helpful
  Other reviews by this user
  • Overall  10
  • Story  10
  • Acting/Cast  9
  • Music  8
  • Rewatch Value  8

  I started watching this drama because of Lee Jun Ki. His acting is great and I loved him in Iljimae.
  
  I really loved the cast, roles, emotions that were portrayed. A touching drama. I was touched by the storyline first, that's the reason why I watched it. The drama was very good, the ending was a good one, but I was hoping for season two to see what what happened in the future.

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• Mar 5, 2012 16 of 16 episodes seen

  yaddle_t
  7 of 7 people found this review helpful
  Other reviews by this user
  • Overall  10
  • Story  9
  • Acting/Cast  9
  • Music  8
  • Rewatch Value  10

  This was one of the most exciting dramas I've seen. One of my ultimate top favorite dramas. The story is itself is pretty interesting and extremely addicting. There are tons of action, funny scenes and sweet scenes. Every episode captures your attention and makes you want more. The cast is amazing. You definitely get attached to many of the characters. In particular, Lee Jun Ki did an amazing job. You get to see his array of acting skills because of his character transformation. The music was fitting. This is a series that I would surely want to watch again in the future. This one is definitely worth the watch!

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• 
  Hero

  They have the same main actor, the handsome and talented Lee Jun Ki, and almost the same feeling.

  reportRecommended by Brigicz
• 
  IRIS

  They are similar in the "secret" spy like stuff.. Both are full of action and suspense.

  reportRecommended by phoenixtearz9