The story revolves around the famous story of (Ali Baba) and his discovery of the cave of thieves, and the conflict between good and evil continues in the city, where corruption is spread at the highest levels, even in the governor's palace, and the gang of forty thieves spreads corruption and thefts in society, and Ali Baba works in the service of his rich cousin, then escapes from it and discovers the cave and becomes the masked knight who works to spread good, and tries to thwart the gang's plans