Trolley: Season 1

Kim Hye-joo clashes with her daughter after denying her a special opportunity. A shocking discovery throws the family into a painful situation.

An unexpected visitor shows up at Hye-joo's home. Assemblyman Nam Joong-do attempts to divert the public's attention from his family.

Hye-joo attempts to get closer to Kim Soo-bin. Meanwhile, Joong-do deals with the public and personal aftermath of his political actions.

As Soo-bin spends more time at Joong-do's house, she's given a warning. Hye-joo's past begins catching up to her.

An unexpected encounter at her home leaves Hye-joo feeling distressed. Jin Seung-hee attempts to please her mother amid the hostility.

Seung-hee uses her leverage to make things right for her mother. Joong-do asks Jang Woo-jae to investigate Hye-joo's past.

Joong-do finds out the truth about Hye-joo's secret and vows to take care of her. Woo-jae warns Choi Ki-young against rehashing Hye-joo's past.

Ki-young asks Hye-joo for an uncomfortable favor, leaving her feeling conflicted. Hye-joo later confronts Joong-do about his TV appearance.

Hye-joo discovers a shocking piece of information about her son's death. Meanwhile, Soo-bin disappears from Hye-joo's home.

Hye-joo meets with a man claiming to be her late son's friend. Joong-do asks Hye-joo for permission to go public with her painful past.

Hye-joo confronts Joong-do about his calculated political decision. Lee Yoo-sin discovers Hye-joo's identity as Joong-do's wife.

Joong-do goes against Hye-joo's wishes and publicly announces a shocking development. Hye-joo later demands answers from Soo-bin.

Hye-joo interrogates Joong-do about his inconsistencies. Seung-hee exposes Hye-joo's past to the world — forcing her to go on the defensive.

Hye-joo begins questioning everything around her after hearing a shocking revelation from Soo-bin. Joong-do learns the truth behind his son's death.

Hye-joo goes on TV to reveal her past to the public. Hyeon Yeo-jin later confesses her horrifying secret to Hye-joo — turning her world upside down.

As the web of lies unravels, Hye-joo and Joong-do face the consequences of their actions. Seung-hee finally comes around to the truth about her family.