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When his son dies in battle during World War II, Lew Marsh (Don Ameche) is convinced that his boy died too soon and was never able to really appreciate life. Bitter and depressed, Lew nearly gives up on ever being happy again, until he gets a visit from the ghost of his grandfather (Harry Carey). Together with the ghost, Lew travels back through his son's life and sees that he did live a full and happy life, after all, and that his death in combat was not really a waste. Wikipedia