Leverage follows the story of a former insurance investigator who forms a team of thieves and con artists to catch the real bad guys.

Lee Tae Joon is an excellent insurance fraud investigator. An unexpected case changes his life. He quits his job and recruits talented criminals, that he once caught, to form an elite fraud team. The team includes Hwang Soo Kyung, Go Na Byul, Roy Ryu and Jung Ui Sung. They scam wealthy criminals and return the money that they stole to the victims.