Cara the Fair is a Valkyrie and the twin sister of Furie. Cara and her sister's non-godly parent was a Fury making them both part Fury.
In the absence of her sister who has been missing for fifty years, Cara would have been next to lead the Valkyries but she is occupied with a mission so the task fell to Annika.
Her mission is to secretly protect a line of humans, watching over them as a guardian angel. One problem–the oldest son of the new generation is a thrill seeker and extreme sports enthusiast who runs Cara ragged as she races around the globe to keep him safe. She has begun to suspect he knows about her, and is trying to draw her out.