After severing ties with his gang, a former gangster returns to uncover the truth behind his brother's death -- embarking on a relentless path of revenge.
After Nam Gi Suk's mysterious death, Nam Gi Jun emerges from seclusion on a mission to find the perpetrator — no matter the cost.
After tracking down Gi-seok's hit, Gi-jun discovers the scheme's origin — forcing him to enforce a rule he established more than a decade ago.
Despite his father's precautions, Gu Jun-mo underestimates the threat he faces. Frustrated and desperate, he decides to handle Gi-jun himself.
Desperate to save his son, Chairman Gu digs deeper into Gi-seok's hit. After Jun-mo attacks his friends, Gi-jun goes head-to-head with Jun-mo's army.
Gi-jun quickly learns that his problems don't end with Jun-mo. A gang war breaks out after Chairman Lee suspects the real architect behind recent events.
Cha Yeong-do sets his plan in motion. As Lee Geum-son seizes power, Gi-jun faces betrayal, danger, and a race to uncover the truth behind it all.
With all his obstacles cleared, Geum-son puts his endgame into play. Will Gi-jun succeed in stopping him, or go down trying?
Complete episode guide for Mercy for None with detailed information about every season and episode including air dates, summaries, ratings, and streaming availability in United States.
This episode guide is organized by seasons, making it easy to track your viewing progress or find specific episodes. Use the episode information to plan your binge-watching sessions or catch up on missed episodes.