Geological expert John Leighton naïvely introduces his flirtatious wife Emily, whom he worships, to his boss, W. G. Griggs. Their mutual attraction blossoms into an affair after Griggs sends John to the Graypeak district, ostensibly to prospect for possible quarries. In the mountains, John meets Enid Arden, a timid, beautiful girl, who falls in love with him after he rescues her from being raped. In the city, John discovers the affair, and leaves Emily after beating up Griggs. Emily and Griggs go to Europe to avoid a scandal, and when John reads that Emily has started divorce proceedings, he returns to the mountains to escape his bitter feelings. In Europe, Emily and Griggs quarrel when she complains about his attention to other women. After Griggs is killed by a jealous lover, Emily tracks John to Graypeak. Although John sends her away, Emily is confident that an appeal to Enid's sympathy and honor will cause her to give John up. After Emily's train collides with a freight train, John and Enid face a happy future together.—AFI