1812. Spain. Jem Riseley, brave, skilled and daring, the perfect soldier in Wellington's Army except she is a gently-born lady. A battlefield promotion provides an escape from a sadistic Major, but first Jem must convince jaded Captain Tony Dorrell, who knew her as a lady, that she's the man she seems. From the dangers of war-torn Spain to scandal in London's elegant drawing rooms, Jem will fight to preserve her secret. However, the reappearance of an old adversary forces Jem to confront her past to save her and England's future.