Definitely a must watch show

I. Story
When you thought you have guessed the twists and turns, a new layer is introduced to prove your guesses wrong. This is rare in this genre and the writer, Hyuk Rin Jang, wrote a masterpiece.

While "The K2" was mainly about the political game, it was also about family relationships and the politics that is common in large clans with huge money at stake. This type of story is usually told by showing a dragging drama but in this TV series they approached it from an "outsider" view or as a secondary story. THe family politics was there but they were careful in keeping it from becoming the main story.

II. Acting
Excellent acting from the veteran and younger actors. The fight scenes, especially in episode one was beyond Western choreography, "James Bond" and "Mission: Impossible" can never match what they did.

I was also impressed by YoonA's acting of her character. At first it looked like her role was easy but as we get into the middle episodes, her character was challenging--she had to be a totally different person, someone with PTSD and deep hatred.

III. Music
The background music were perfect. It adds to the impact of an already powerful scene. It was good because BGMs should act as an amplifier for scenes and not as "the scene".

IV. Production
Great production. Clearly every centavo was spent to create a realistic show which captivated the audience and made the boundary between reality and fiction non-existent.