Isabel learns of her ex-fiance's return to London when the roguish young mantries to win the job of supplying fireworks for Queen Victoria's DiamondJubilee celebration. This is a privilege which is passed down throughIsabel's family, as they have been the supplier of fireworks to the royalfamily for centuries! The battle lines are drawn as the pair tries to outwitand outdo each other to see who will light up the night. But even as thefireworks go off, they find themselves being drawn to one another in a wayeven more explosive.