On the eve of her wedding in 1978, Shay Garrett peers into the antique mirror in her family's longtime home, the famous Victorian Gingerbread House on Pearl Street in Boulder, Colorado and falls unconscious only to wake in the body of her own grandmother Brandy on the eve of her wedding in 1900. The virginal Brandy, in turn, awakes in Shay's body in 1978 to discover herself pregnant.
"Fun time travel"
In 1980 Colorado, Aletha Kingman comes to the ski resort of Telluride to find refuge from a shadowed life. Cree Mackelwain comes to find the secret of his dead partner’s involvement in the drug trade. In 1901 Colorado, young Callie O’Connell faces a destiny of poverty and shame on the forbidden side of town. Her brother, Bram, faces a lifetime of danger in the gold mines along with the gathering threat of bloodshed between miners and their bosses. At the Threshold, they meet Aletha and Cree, astonished time travelers from a modern era.