The Roundup: Punishment

'Monster Cop' Ma Seok-do investigates an illegal online gambling business led by a former STS Baek and an IT genius CEO Chang. Ma proposes an unexpected alliance to Jang and begins hunting down the criminals.

In the Philippines, former Korean Special Forces and current head of an online gambling organization Baek Chang-gi kills his worker Jo Sung-jae who attempted an escape. Casino admin Chang Dong-cheol promises Baek to increase his share if he shuts down a rival casino and take over their members. Baek does so with a violent raid on the rival's server and take the members data but Chang fails to fulfill his promise. Feeling inadequately compensated, Baek flies back to Korea to confront Chang.