Invincible) is a 2010 South Korean neo-noir action drama film[2] starring Joo Jin-mo, Song Seung-heon, Kim Kang-woo and Jo Han-sun.

[6] Kim Hyuk (Joo Jin-mo) is a detective in the South Korean National Police Agency, having escaped from North Korea as a teenager.

Unbeknownst to his superiors, he also moonlights as an illegal arms smuggler with his best friend and partner in crime, Lee Young-choon (Song Seung-heon), who also defected from the North.

Hyuk has a younger brother, Chul (Kim Kang-woo), whom he was forced to leave behind (along with their mother) during his escape.

Hyuk goes to Thailand to complete an arms deal, accompanied by an ambitious gangster named Jung Tae-min (Jo Han-sun).

After reading about Hyuk's capture in the newspaper, Lee finds the Thai gangster in a massage parlor and kills him and his henchmen.

Even though he is free to escape, Hyuk decides to return to save Chul and asks Lee to leave with the money.

As the police advance, Chul cradles his brother's body in his arms and tearfully laments that he missed him.

[12] Film Business Asia gave the film a five out of ten rating, opining that "there's plenty of South Korean machismo (with none of the lightness and humour of its Hong Kong equivalent) and a much darker emotional core, with some intense male bonding ... making this an oppressively all-male affair, heightened by the saturated photography and in-your-face action.