The sequel of the 2001 film Friend. The gang member Joon-seok is sentenced to 18 years in prison in connection to the death of Dong-soo, his childhood friend and a member of a different gang. Joon-seok meets Dong-soo's son Sung-hoon in prison, but keeps his relationship with Dong-soo a secret. Joon-seok proposes to Sung-hoon to join forces with him when he's out of prison in order to grow in power, but the table is turned suddenly when Sung-hoon finds out about the connection between Sung-hoon and his father.