The true story of a strike in 1970 by female textile-factory workers in Leeds who wanted to be paid the same as their male colleagues, but whose efforts were undermined by the trade union that they belonged to.

When one of Regan's snouts complains that his girlfriend's recent suicide was murder, the flying squad detective feels compelled to investigate. He uncovers a conspiracy that reaches the heart of the government, and finds himself fitted up, suspended and under the scrutiny of Special Branch.