Undercurrent

Loyal to his gangster boss, Pua risks everything for money—and for Mi-ji, the ex-prisoner he secretly loves. But freedom brings distance, not desire.

Shun used to work under Liao but vanished without a trace three years ago. Now, he's back seeking a job, despite being wanted by the police. Unlike the talkative Liao, Shun is quiet and mysterious, never mentioning his past, and Liao doesn't ask. Still, Liao senses Shun's desperation. On the heavily regulated construction site, Liao helps Shun navigate the heavily guarded construction site. Just as Shun gets through the checkpoints, the police arrive, catching both men off by surprise.

Ah Quan makes a living as a laborer, earning money through physical work. In his spare time, he enjoys gambling, with mixed results—sometimes winning, but mostly losing. As a result, aside from making ends meet, his savings are pitifully small. It wasn't until his elderly father, Ah Dong (played by Peng Yi), began frequently going in and out of the hospital that most of his income had to be spent on his father's medical expenses, prompting him to gradually quit gambling. However, watching his father suffer from illness and dealing with the pressure from his wife, Qiu Rong (played by Huang Jiefei), Ah Quan decided to take a gamble once more, hoping for a turnaround. Unfortunately, on the same day, his father's life came to an end, leaving Ah Quan torn between using his father's funeral savings and his hopes of hitting the jackpot.

In the 1990s, Cai, a foreman on an MRT tunnel project, leads his crew of workers into the depths of underground construction. In order to pay for his daughter’s music classes, with his co-workers, each with his own dreams, they unexpectedly unearth a mysterious katana deep within the tunnel, after which a series of uncanny coincidences begin to unfold. In the meantime, Mei-li, the first female construction chief in Taiwan, was striving to prove herself in a site dominated by men. However, because of that, she experienced a journey full of crises. As the project progresses, workers begin to exhibit symptoms of decompression sickness. When the answer surfaced gradually, where were those people supposed to go? In this drama of workplace politics, mysteries and relationships, let’s see if these invincible underdogs were able to ask God for something. Was the mysterious power in the tunnel a blessing or curse?