Jack Lane, a young nature photographer, goes to the mountains to experiment with his new flashlight process that will automatically photograph the passage of any bird or wild animal. While asleep one night, Jack is awakened by gunshots and soon after discovers that his camera has registered a picture of a woman fleeing carrying a shotgun. Curious, he visits the cabin of Porter Brixton, the murdered man, and is arrested for the crime. Managing to escape, Jack meets Delice Brixton, the woman whose likeness developed from the plate. They both suspect each other of the crime, but Jack is recaptured and brought to trial. At the hearing, when the dead man's half brother, Henry Norton, appears and admits killing Brixton in self-defense, Jack is acquitted.