- Tai (Preeti Barameeanant) gets out of jail and discovers that his twin brother, Tan has been in come for the past year. Tan has entered the world of Fireball, a violent game based on basketball hosted by underground criminal gangs, so as to raise money for Tai's early release. However, he was brutally beaten by another player, Tun. Tai agrees to join Den's team so that he can track down the man who hospitalized his brother. Tai is befriended by his teammates: Singh (Kasem Jaesani), a Thai boxing champion who wants to prove that he is the best; Muk (Kumpanart Ungsoobgnern), a Thai-African guy who needs money to support his family; IQ, (Karnnut Samerjai), a cheerful character who only wants to help his mother; and K (Anuwat Jeg), an old friend of Tan who has a mysterious past. He and his teammates must risk their lives and fight their way to the final round of the deadly Fireball championships so that Tai can avenge his brother on the court.