Winstanley explores the attempt by Gerrard Winstanley who formed 'The Diggers' and with a group of followers attempted to form a small farming community in one of the first proto-Communist attempts at collective agriculture.

King Arthur's daughter (Janette Scott) saves the throne with the help of a forest outlaw (Ronald Lewis) and Merlin the magician.

In the Sudan, in 1884 to 1885, Egyptian forces led by British General Charles "Chinese" Gordon (Charlton Heston) defend Khartoum against an invading Muslim Army led by a religious fanatic, Mohammed Ahmed el Mahdi (Sir Laurence Olivier).