The story begins with the introduction of a new car model at a Hyundai Motor factory in Ulsan. You might wonder, what story can there be in making a new car? However, there is a huge story behind it. The introduction of the new model becomes a golden opportunity for the company's restructuring. This is because, from the design stage, modularization, which involves making multiple parts into one pre-assembled part for a single-step assembly, allows for cars to be produced with fewer personnel. For the workers, the danger of layoffs may be imminent. The company plans to use this new model introduction as an opportunity to lay off 200 production workers. Naturally, the workers cannot accept this. Both regular and temporary workers oppose the staff reduction, and each sets up a protest tent to begin their struggle. A few months later... The company's final proposal is a reduction of 20 people. Amidst strong division between regular workers regarding approval and disapproval, our protagonist, Heo Dae-soo, steps forward and leads the negotiations with the company. Regular workers dismantle their protest tents, and only temporary workers continue their tent protest. 'A reduction of 20 people.' Although it's not written anywhere that these 20 people are temporary workers, everyone knows it. Now, 20 temporary workers will be kicked out of their jobs. As Heo Dae-soo reports this final negotiation result to the union members and leaves the factory gate, something unexpected happens that makes him fall over in surprise...