Sing-Dtoo, a light-skinned Jamaican Muay Thai warrior, hides his power by repeatedly falling short of the world title. By night, he can become a powerful demi-lion. After meeting a woman who sees his true strength and refuses to let him hold back, he faces Herrick, a ruthless demi-hyena who trained beside him under Arjarn Jai-Khaeng until a savage sparring loss made the master banish him. Herrick kidnaps the woman and challenges Sing-Dtoo to the Universal Legendary Muay Thai Championship. Their brutal journey explores pain, triumph, love, and unrelenting violence, while a buried truth waits: Herrick killed Sing-Dtoo’s late Thai mentor and absorbed his power.