In 1978, when the push to decriminalise homosexuality has stalled, a group of activists decide they must make one final attempt to celebrate who they are. Led by former union boss, Lance Gowland, they get a police permit and spread the word. On a freezing winter's night, they cloak themselves in fancy dress, join hands, and parade down oxford street. But they have no idea that angry police lie in wait, and the courage they find that night will finally mobilise the nation.