David and Mia meet on holiday on a Pacific island and after a whirlwind romance agree to get married. Orphaned David returns to London, collects his three best friends to share best man duties and heads to Australia for the wedding. After the best men make an unscheduled detour on the way, things spiral wildly out of control, which doesn't impress Mia's pompous senator father. David is soon fighting to keep the wedding on track. Show less