Marine ecologist Annie Henderson joins her new boyfriend on a trip to the Western Isles of Scotland to protest a hazardous offshore drilling venture. When she realizes that she may be swept up in something far more dangerous than she's intended, there is only one man she can turn to ... Because he's gruff and guarded, she can tell Dan Warren has secrets. But she could never imagine how high the stakes are for him to keep his cover, even as he risks everything to protect her ...