When the Great War breaks out, Cecilia Carroway lies about her age and enlists as a pilot. She earns her Ace nickname, but she's shot down behind enemy lines and imprisoned. She meets five motley fellow prisoners Quack, Bert, Sam, Tombstone, and Gooper. Escape is hard enough, but Ace won?t go without sabotaging the enemy?s war machine. Add in Minister of Technology Darko Dor?s plan to kidnap Ace, and Ace Carroway?s chances of survival drop to zero.