Spies and Special Ops

This movie follows two main characters who have been placed undercover, one in the mafia, and the other in police. It really is a very well-crafted story that, although for the most part you know exactly what's going (or at least I did), one can't help but be drawn into it for it's entirety. There is clearly a reason that this movie has won a lot of awards, as has the American remake, The Departed.

Being the sequel to Internal Affairs (I mean this just added the 2... surely you picked up on that, right? ;) ), this movie doesn't just throw out the undercover personnel that the other had (I mean if it did, pretty sure it would no longer be infernal affairs...), and thus it too is on this list.

This is basically a prequel to Infernal Affairs, but still watch in the numeral order.

Rightio... check out Infernal Affairs II... this just added 1 to make Infernal Affairs III... this one picks up where the first left off, and there are still some peeps undercover.

As usual, the first is best, but if you liked the first, I'd recommend the basically prequel and sequel as you get to see more of the character's stories, and it just fills out their stories more. 

Kim Hyun Joon (K2) and Jin Sa Woo (K1) are brought into a secret organization known as the NSS, made to assist the president... even though he just recently learns about them when Hyun Joon saves him... There the two are specially trained and given missions as a team in the field along with Choi Seung Hee who specializes in profiling.

K2 follows Kim Je Ha, a former solider finding jobs here and there that use his his skills. He ends up being hired as a bodyguard for some powerful people with secrets and questionable tactics. This is kinda in between honorable mention and actual list... there isn't any spying, but Je Ha has very good skills from his time as a soldier, and uses them a lot here...

Let us introduce K, an extremely talented spy with a flair for the dramatic (que the random car explosion as explanation for his disappearance). He gets assigned a mission that requires him to get close to the world star Yeo Woon Guang, famous for his time as dark death and does a lot of action movies. This show is more of a comedy than being serious... like at all... which is kinda of a nice change in spy movies. Though this show does kinda have a lot of faults in it, it is also pretty fun to watch for the exact reason that there is very little to take seriously. 

Miss Kim is a mystery... (okay... and now to not sure reword the title) and Mr. Lee is sent to keep a watch on her from superiors in the company they both work in. There's something brewing, but who is behind it and who is trying to restore peace?

As a child, Lee Soo Hyun watched his mother be murdered in front of him. Since then on he forgot his memories growing up in Thailand and was raised by an NIS agent. Years later he, an agent himself, was sent on a mission that triggered his memories. Memories back, Soo Hyun decides to seek to bring down the Thai syndicate that had killed his mother. He is sent on a mission to infiltrate the syndicate. He adapts the name... Kay... and works his way through the ranks.

HONORARY MENTION

This motley crew is set to serve justice on those who wronged them, as well as watch the criminals who got away and protect potential victims. However in order to do this well, it means they can't really show who they are. We've got one on the run after trying her best to catch the bad guy and bring justice to her daughter's murder, who becomes their field agent, one who is an incredibly good hacker who goes into the field when needed, one who is a recluse after what happened in her past, who watches all the security cams, keeping an eye on the criminals and watching the backs of those in the field, as well as one who's giving them orders through a veil of obscurity, as they themself is undercover, and the one that the messages go through.