Joshua must protect his twin sister, Emma, who possesses supernatural abilities and keep her safe from an unstoppable secret agent hunting them for an experiment in a classified government program.

WWII has ended and Hanna is still grieving over her husband’s disappearance. When the Christmas Comet appears for the first time in 70 years, Hanna is caught in a terrible storm and knocked unconscious. When she wakes up, she’s in 2016.