Leonis of Thrace was the legendary gladiator known as the God of the Arena, until his enemies murdered his wife and he vanished from the fighting pits. He hides his identity, working as a handyman at his son's gladiator training ground, enduring humiliation from everyone unaware of his true identity. When his son's team faces dissolution, he chooses to join them in the prestigious War Trials competition, showing off his legendary skills and drawing attention to his mysterious identity.