It's an old drama, but the plot is great. I understand the plot better than cruel city. Truthfully I think this is the best drama about police and spy. This is a masterpiece. The acting is flawless, as usual delivered by Lee Joon GI and Jung Kyung-Ho. All of actors who act in this are amazing and really believable, i am not someone who rate everything high and perfect, but this show really can make me feel everything.. I always want to watch this drama since like forever but i am busy with life, i don't have time.. Even though Lee Joon Gi is in it, and i also thought it's an ancient drama, probably the directing, budget, editing, special effect etc are not good enough to entertain me.. Then i watched healer, city hunter and cruel city, when i know dr. son in cruel city also played TBDAW, i was like, ok this is the time for me to watch both my favorite actors, Lee Joon Gi and Kyung Ho.. When can i have the chance to watch them both?? hahaha And IT BLEW MY MIND!!! Forget about the fashion, style, haircut, editing, low budget, directing etc when the writer and actors are damn good, everything else is nothing and no problem at all! Now i know where healer, cityhunter, K2 and cruel city take inspiration from, probably from this show since it's an old show.. and maybe also from internal affair movies hahaha... After i watched this, everything else included city hunter becomes so pale in comparison.. The twist in TBDAW is so good and it's not messy. It's logical and rational too, the cause and the problems all real, i haven't watched all lee joon gi's drama and movies but i guess, this is his best drama so far that i have watched. He is also very handsome in this drama, he was still young :D the action is good, i mean all the fighting moves from him are real and natural. Even my husband said that Joon Gi action style is much much better than Ji Chang Wook action scene in healer, he said that ji Chang Wook is too stiff for action scene, of course Lee Joon Gi is better in action coz he is a taekwondo black belt himself, so his moves are just natural and flexible.. He also never has a double to do stunts for him, I know that i am so biased towards him, but he really makes the lead character real.. Imagine how difficult it is to do action scene.. he is an energizer bunny I need to mention the acting again, it's so god damn good!!!! Joon Gi and Kyung Ho and even the villain, gosh! I hope more kdramas like this, really follow logical plot like this, it's well written. I cannot hate the villain in this drama coz it's only the matter of perspective. His 50 shades of grey is really interesting, i hope this serial have more episodes to talk about the villain character.. Music is quite old since it's an old show anyway.. So it's kinda outdated and weird hahaha but again, it did not distract me while watching it coz i was too focused on the story.. The ending is also good and satisfying for me, there is no tragedy. Overall, i marathon this for 2 day since today is holiday for me.. I totally have forgotten the time while watching this, suddenly i have watched so many episodes hahaha Definitely a must watch!