Kit Holloway and Tyler McCord have been friends for years and in love since high scool. Now they're planning a big wedding and a happy future working together as river guides for Canyon Cowboys, taking rafters on wild rides through the Grand Canyon. But Kit's father and Tyler's stepmother have plans too, shocking plans that open an impossible canyon of differences between Kit and Tyler and shatter their future together.

Their lives go in totally different directions until a plane crash forces them into an awkward temporary reunion and a dangerous rescue on the river. Their feelings for each other resurface, but are those tempestuous feelings eough to break through the canyon-deep barrier that still stands between them?