The Roundup (2022)

Four years after the sweeping operation in Garibong-dong, Detective Ma Seok-do and Captain Jeon Il-man head to Ho Chi Minh city, Vietnam to extradite a suspect Yoo Jong-hoon. After their arrival, they meet some Koreans living in Vietnam. Ma interrogates Jong-hoon, who reveals that he turned himself in because Lee Jong-du tried to kill him. Ma and Il-man leave for Jong-du’s hideout, only to find him dead, where they learn about the duo’s involvement with Kang Hae-sang, a vicious killer who has kidnapped and killed Koreans and several tourists, in exchange for money. Kang’s one such victim is a wealthy young Korean named Choi Yong-gi. Ma, Il-man and Park Chang-su (the resident officer at the consulate) digs the garden, where they find Choi’s body, but the local police warn him to halt the investigation. Despite the proceedings, Ma and Il-man arrives at a gambling den, where they interrogate a Korean thug named Raku, and learn that Choi’s father Choi Choon-baek, a business mogul have send hitmen to kill Kang.

Meanwhile, Kang arrives at the house, where he kills all the hired killers, who reveal about Choon-baek. Ma arrives and overpowers Kang, but the latter escapes. Ma and Il-man are deported back to Korea, where they learn that Kang has smuggled himself and landed in Korea to meet Choon-baek. After the duo land in Korea, Ma interrogates Jang I-soo, who is alive and now running an export service, where he learns about a recently arrived smuggling boat. They check the CCTV footage of Gongping port, only to confirm that Kang has arrived. Choon-baek announces a hefty amount for his men to bring Kang alive. After learning that Kang’s case have been handed over to the Foreign Affairs, Ma and Il-man convince the Chief and get a week deadline to catch him. Kang discreetly arrives at Choi’s funeral, where he kidnaps Choon-baek, after killing his bodyguard. Kang then contacts Choon-baek’s wife, Kim In-sook and demands money, in exchange for Choon-baek. In-sook reveals it to Ma and his team and cooperates with them, so that they can arrest Kang.