Tai, imprisoned for a year, is released from prison thanks to his brother, Tan. But as soon as he returns to the street, he finds out through his sister-in-law, Pang, that his brother has been in a coma all year. From there, the young man decides to trace Tan's paths to find out what happened, and ends up entering a dangerous illegal basketball game called Fireball, which has already cost the lives of many participants.