The veteran detective Seo Do-cheol and his team at Major Crimes, relentless in their pursuit of criminals, join forces with rookie cop Park Sun-woo to track down a serial killer…

With no clue how he came to be imprisoned, drugged and tortured for 15 years, a desperate man seeks revenge on his captors.

Soon-tae, aspiring to start his dream restaurant franchise, is nominated as the next boss of the gang. He hopes to pass the role to Kang-pyo, the grandson of the former…