Summer 1914. Sisters Rose and Lizzie work as maids, a world of deference, bed-making and poor pay. When war breaks, adventure-seeking Rose becomes a shell worker, persuading her procedure loving sister Lizzie, to follow her to a world offering more money, exciting work and union activity. It seems like a new start. But as the sisters discover the dangers of shell work, they realise their dreams are pulling in opposite directions. As old and new worlds collide on the factory floor, each sister must ultimately decide, which takes more courage - following your dreams, or giving them up for the ones you love?