Choco disappeared from his Antelope, California home in 2021. Five years later he turned up tied to a fence near Detroit — more than 2,000 miles away. The Lincoln Park Animal Shelter scanned his chip, and the California group Helping Paws and Claws traced his owner. A stranger donated her SkyMiles so a volunteer could fly Choco home for the holidays. "Microchip your dogs, people," his owner Patricia said.