Hard-hitting melodrama about racial tensions in early 1960s England, starring John Mills and Sylvia Sims. Jacko Palmer (John Mills) is a union man who has to confront the prejudices of his members when a black foreman (Earl Cameron) is appointed, and the members threaten to strike. When he discovers that his daughter (Sims) wants to marry Jamaican schoolteacher Peter Lincoln (Johnny Sekka), however, Jacko must confront his own prejudices.