Horrible Histories returns for a special about King John and Magna Carta, starring Ben Miller. John annoys the barons and agrees Magna Carta at Runnymede after a banging rap battle.

Meanwhile, across the world, we meet the formidable Genghis Khan in Mongolia and catch up with the crafty Saladin during the Crusades. With, of course, our host Rattus to guide the way! Show less