Sun Ki, the worker in a waste disposal center in a small port town, keeps reminding the memory that he wants to forget.

Ji-hyeon works as a temp at a university, writing and making films. One day he finds he has confusing feelings towards Geon-woo, a younger schoolmate. The two men fall in love with each other, bringing controversy among colleagues.

Choi Jihoon is assigned to Daehun High School, the worst high school in Korea. He pledges to be the ‘Jjang (Top gangster)’ here, but the reality is quite tough.

There is an unprecedented “Special Squad”, commissioned to solve the unsolved incidents that even the police can’t handle. Those who have raided the underage prostitution case will be commissioned to investigate the ‘Algo Mall’ mission. What they’ve thought to be just one of the usual cases of underaged labor, there seem to be a huge background at the end of the dark underworld… Here comes the crazy ones who beat the bad guys!

Yeon-hee always had dreams of becoming a heroine. Now in her late 20s, she is transported from a movie set to a parallel world where she gets the chance to live her dream.