The 2018 South Korean action-thriller Unstoppable (Korean title: Seongnan hwan-so , literally ) serves as a quintessential vehicle for actor Ma Dong-seok (Don Lee). Directed by Kim Min-ho, the film follows a reformed gangster who must return to his violent roots after his wife is kidnapped by a human trafficking ring. Film Narrative and Premise

: Breaking typical kidnapping tropes, the abductor sends Dong-cheol a large sum of cash as "payment" for his wife, rather than demanding a ransom.

: Kang Dong-cheol (Ma Dong-seok) is a former legendary gangster who has retired to live a quiet life as a fish vendor with his wife, Ji-soo (Song Ji-hyo).

: Enraged by the transaction and frustrated by police inaction, Dong-cheol teams up with a bumbling private eye and a loyal friend to track down the trafficking organization. Core Themes and Analysis Unstoppable (2018) 성난황소 Review - EonTalk

: Following a minor traffic dispute with a mobster named Gi-tae, Ji-soo is abducted.