Terra Rendon's first vision of the future was of her twin brother Tommy in a train accident, and as a result she became a mechanical engineer so she could keep him safe. When she is summoned to Virginia to help investigate a fatal trainwreck she meets Gardner Lewis, the newest detective in the Roanoke Police Department. Handed a case no one else wants, he relies on her instincts but finds himself wondering how she comes by her knowledge. Terra has never told anyone about her power but the more she gets to know Gard the more she wants to confide in him. When her childhood vision threatens to become a reality, only a miracle will be able to save Terra's brother and make her Christmas wish come true.