A Dog Saved This Veteran's Life



Lt. Chet Frith came back from multiple tours in Iraq and started suffering from an intense case of post-traumatic stress disorder. His lifeline? A service dog named Gunner. In this clip from "The Jeff Probst Show," Chet explains what he means when he says that Gunner, who is trained to keep an eye on Chet and his surroundings, saved his life. It's a touching story of what man's best friend can do!

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