This is episode 84 of 95 of The Dragon King's Command Ⅲ. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
The closing stretch of the season, where the arc pays off.
Guided by a master, Michael becomes the lord of the Dragon's Palace, but is falsely accused and imprisoned. In jail, he seizes an opportunity, wins over the inmates, tasked with mediating the conflict between the northern and southern martial arts worlds.