Do Gi, a former Special Forces officer, is consumed by grief after his mother is murdered by a serial killer. He joins Rainbow Taxi, a secret organization that delivers revenge to victims the law couldn't protect. As he becomes a star driver, he faces prosecutor Ha Na, who investigates Rainbow Taxi's lawless methods while questioning their ability to bring justice. Torn between revenge and the pursuit of justice, Do Gi seeks to understand what true justice really means.
Kim Do Ki (Lee Je Hoon) graduated from the Naval Academy and became an UDT (underwater demolition team) Official. His mother was murdered by a serial killer and his life changed afterwards. He is now a deluxe taxi driver and works for Rainbow Taxi Company. The company is not just an ordinary taxi company. The company offers a special "revenge-call" service. If clients ask them to take revenge, Kim Do Ki and his co-workers will perform the service.
Do Gi, a former Special Forces officer, is consumed by grief after his mother is murdered by a serial killer. He joins Rainbow Taxi, a secret organization that delivers revenge to victims the law couldn't protect. As he becomes a star driver, he faces prosecutor Ha Na, who investigates Rainbow Taxi's lawless methods while questioning their ability to bring justice. Torn between revenge and the pursuit of justice, Do Gi seeks to understand what true justice really means.
