Desc: The U.P. Trail: Directed by Jack Conway. With Kathlyn Williams, Roy Stewart, Marguerite De La Motte, Robert McKim. Warren Neale, an expert civil engineer, is working on the first transcontinental railroad when he rescues Allie Lee after her family has been killed by an Indian massacre. Through Warren's care, the girl recovers and their friendship ripens into love. Warren leaves Allie at trapper Slingerland's cabin when he goes to the nearby town of Benton to buy provisions. In his absence, Jose Durade, claiming that Allie is his daughter, goes to the trapper's cabin, kills Slingerland and abducts the girl. Returning to find Allie gone, Neale, half crazed, searches for her until he collapses in exhaustion and is cared for by "Beauty" Stanton, the dance hall mistress who loves the engineer. Beauty learns that Durade is holding Allie at his dance hall, rescues the girl and brings her to Neale. Durade, in revenge, gathers his gang together at Beauty's place where in the ensuing battle, both Durade and Beauty are mortally wounded. In her dying moments, Beauty offers the lovers her blessing and they set out together to finish Neale's work on the U.P. Trail.