Mountain Madness (1920)

After Enid and Jack Radnor, vacationing in the Virginia mountains, have a bitter quarrel, Enid meets Polly Mason and Martin Hale, who invite her to their cabin. There she discovers that something mysterious is happening in the mountains. When a train robbery occurs, the sheriff, believing that Martin is a member of the outlaw gang, demands his surrender. After many misadventures, Martin finally proves his innocence. Then Enid mysteriously disappears and is found unconscious at the edge of a cliff. Enid's mother comes to resolve her problems and recognizes Polly's father as an old sweetheart who quarreled with her many years before. Finally, Enid and Jack, after observing so many romantic separations, realize their deep love and are reconciled.