S1·E47 Sir Gus and the Dragon

After being ambushed by the Raptors, Bullzeye is forced to take refuge in a cave near the Scottish coast, where he meets a young boy who thinks Bullzeye is a dragon. With the boy's help, Bullzeye must rejoin his friends in time to set a trap for the Raptors, who think that the area's legendary "dragon treasure" is actually a cache of equipment left by more of Argor's intelligent Velociraptors.