Ah-ching, whose father is disabled due to a brain injury, fools around with his friends Ah-rong, Kuo-zai, and Ah-yu in their island fishing village, Fengkuei (). One day, they get into trouble with the local gangsters, and Ah-ching smashes one's head with a brick, causing the police to look for Ah-ching. They go to Kuo-zai's uncle's house on the sea shore in Neipo () to hide and have a good time, but they are eventually brought to the police station for their crimes. Bailed out by his brother, Ah-ching does not want to stay in Fengkuei any more. He steals some money from home and goes to the port city of Kaohsiung together with Ah-rong and Kuo-zai to look for work. With the help of Ah-rong's sister, they rent a room on the island of
Cijin. The industrial city of Kaohsiung is vibrant but full of traps. Thanks to Huang Jin-he, a friend of Ah-rong's sister who lives in the same building across from their room, Ah-ching and Kuo-zai successfully get jobs at the electronics processing factory. Ah-ching soon develops a crush on Jin-he's girlfriend, Hsiao-hsing. One day Ah-rong's sister gives them money to have fun in Kaohsiung. They get scammed and are tricked into going up an empty building to watch a porn film, but instead find that there is only the landscape of Kaohsiung to see. The view prompts Ah-ching to start working hard by learning Japanese. Meanwhile, Ah-rong gets involved with a group of hoodlums. Jin-he is fired because the factory finds out that he had been stealing factory materials. Jin-he decides to take a seaman's job and go seafaring. Ah-ching is worried about Hsiao-hsing, who is sad after breaking up with Jin-he. In his heaving mood, Ah-ching starts to have friction with Ah-rong and even pushes him into the sea. Ah-ching receives news of his father's death and returns to Penghu to attend the funeral. Hsiao-hsing also comes along to Fengkuei to visit Jin-he's family. Back in Kaohsiung, Ah-rong sets up a stall in the market to sell pirated compact
audio cassettes. Hsiao-hsing receives a letter from Jin-he saying that their ship broke down in Japan, so the company is sending the seamen back first. The next day, Hsiao-hsing tells Ah-ching that she is going to Taipei to join her sister and does not want to see Jin-he again. Ah-ching accompanies her to the bus station to see her off. Depressed, Ah-ching goes to Ah-rong's stall in the market. Ah-rong asks him to brighten up because Kuo-zai was drafted and has to leave for Fengkuei the next day and report to the army the day afterwards. The news and the words "military service" written on the sale board give Ah-ching a shakeup. He jumps up on a chair and begins to shout "Military service big sale! Three for 50 bucks!" When Ah-rong tries to stop him because the price is too lower to make a profit, Ah-ching tells him not to have any reservations because "Kuo-zai is going to do military service in two days! Let's just do it!" == Cast ==