The story of the 'Tolpuddle Martyrs', a group of six Dorset farm workers who formed a union in the 1830s in an attempt to win a fair wage for a fair day's work.
Their subsequent arrest and transportation to Australia has come represent a focal point of trade union history.
A top-notch supporting cast includes Michael Horden, Imelda Staunton, James Fox and Vanessa Redgrave.