This is episode 15 of 40 of The Untamable Slave - Rise of the Fallen King. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
The middle of the season, where the conflict escalates.
Max, the Dragon Emperor, is poisoned and crippled by his wife Cassia and adoptive son Lucius, then thrown into the abyss to die. He survives, resurfaces five years later as a mute fisherman, and is forced into the gladiator pits where a duchess stakes her entire bloodline on him. Fighting his way back through the arena, Max exposes proof of the betrayal, reclaims his throne, and executes Cassia and Lucius before the entire empire.