Sung-hee, a lifelong welder, loses a finger while handing a press. Due to severe depression, he lacks sleep and becoming gaunt looking. He is having heavy thoughts and thinking it may be better to die than live like this. Soo-young who went on an all-night sit-in demonstration for 130 days cries out ‘Let’s live together!’ Soo-young, who always had a bitter grin and walked the collapsed town with a limp, climbs up the watchtower, a prison in the sky, leaving a message to protect the community. Six years after Nawatsu has settled in Korea, he found a trading company. His dream of having his family in Korea comes true. Nawatsu thought everything would work out fine but when he sees his son’s tears and his wife’s sigh, he is faced with the prejudice and discrimination he had experienced before. The excavator ploughs its way through the tightly lined-up factories and breaks down the houses and factories without a break. Firecrackers are set off over the people’s cheers and buildings to attract advanced knowledge industry rise high in the grey sky. Sasang which seemed to be firm with great operating machines collapses like a sandcastle in the rain and people’s lives are isolated. Will they be crushed like this, with their hearts falling out of control? Sung-hee, Nawatsu, and Soo-young quietly move to support their lives.​