They joined for their country. They fought for each other.
When war breaks out in 1914, Mark Fenner and his Sheffield friends immediately flock to Kitchener's call. Amid waving flags and boozy celebration, the three men - Fen, his best friend Locky and self-assured Frank, rival for the woman Fen loves - enlist as volunteers to take on the Germans and win glory.
Through ramshackle training in sodden England and a stint in arid Egypt, rebellious but brave Fen proves himself to be a natural leader, only undermined by on-going friction with Frank. Headed by terse, tough Sergeant...

Rosie and Daniel have moved to Ceylon with their little daughter to start a new life at the dawn of the 1920s, attempting to put the trauma of the First World War behind them, and to rekindle a marriage that gets colder every day.