Mickey Bliss is trying to help soldiers train up in time for the Big Push on the Somme at the end of this month. But the citizens of the New Army have other ideas.
Like Flora Sandes, the real-life British woman who fought on the Serbian front line in the First World War, Celestine must take the fight to the enemy.
It's the Last Day of the Battle of the Somme: everyone is trying make the last 147 days meaningful to themselves, if they can't stem the disaster in fact.