centres on the 1984 miners ' strike and the plucky underdogs are a london-based group of gays and lesbians who travel to south wales to express their solidarity with the local branch of the national union of mineworkers .
it 's a rose-tinted , nostalgic look back at a critical moment in 20th-century british history .
every drop of sentiment is wrung out of the story , with brave young men and women risking their lives to take on an evil dictator that