A year passes, and Tae Young returns from prison. He meets with Joong Eun who gives him Seo Rin's number and wishes him the best. He vows to rectify the wrong TL Group has done. Gong Il Sun gets appointed as Director of Occupational Safety and Health, while Joong Eun takes on the role as chief. Together with the rest of the UDC team, they continue to unravel industrial accidents and strive for a world where jobs enrich lives instead of destroying them.