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Black Lightning Synopsis

Accompanied by Thunder, the dog who rescued him from the firing line in France, World War veteran Ray Chambers goes to the mountains to recover from his war injuries. There he meets Martha Larned, a lonely mountain girl who lives with her little brother, Dick. Ray discovers that Martha is the sister of his dead buddy, Frank Larned, and he decides to stay and protect her from harassment by Jim Howard and his half-witted brother, Ez. When Dick is hurt in a fall, Ray goes for a doctor; Ez kills Jim and attacks Martha; and Thunder takes care of Ez. Ray and Martha then get married.

The Key to Power Synopsis

Bruce Wendell, the son of West Virginia coal mine owner James Wendell, graduates from West Point and prepares to lead a fighting unit to the front during World War I. As his father lies dying, however, he convinces Bruce to remain at home and guard the mine. Bruce's fiancée Ann Blair assumes that he is a coward and breaks off their engagement, but her brother Bobbie remains Bruce's loyal friend. Meyer, a German agent, persuades railroad president Parrish to refuse to transport Wendell's coal, but when Bruce adamantly refuses to close the mine, the spy's men decide to blow it up. While Ann is being abducted by Meyer, Bobbie is buried in an explosion at the mine. Bruce rescues Bobbie and then sends a plea to Lieutenant Parrish to rescue Ann. Meyer and his gang are captured and Ann renews her vow of love to Bruce.