Splatalot! was produced by marblemedia and commissioned as an international co-production by Corus Entertainment, the British Broadcasting Corporation and the Australian Broadcasting Corporation. It featured a large, extreme obstacle course and three rounds of competition: "Cross the Moat", "Ditch the Dungeon" ("Escape the Stockade" in the first series), and "Capture the Crown". Each episode features a different group of 12 teenage contestants (known as Attackers) competing against not only the obstacles and the clock but also the Defenders. The Defenders are an international squad of nine medieval-themed gladiators who are tasked with protecting the castle from the Attackers. The winning Attacker is crowned King or Queen of Splatalot!. This king or queen is able to then choose a defender to punish in one of many ways, such as throwing them into the water with a catapult.