This drama is fantastic. Loving the non-stop action, fact-paced storyline, comedy and chemistry. Lee Joon Gi is brilliant in this role , so perfect and Seo Ye-Ji keeps up with him flawlessly, they make a great duo. The fight sequences are superb . It even has comedy inserted into this suspense action drama . I am so happy after lots of dingy dramas this year I found this gem. Do not miss must watch . Suspense and twists are endless. The story moves fast like a bullet train no dragging whatsoever .