Mandy Iworrigan's 1-year-old Australian shepherd, Nanuq, embarked on a 150-mile journey across the frozen Bering Sea ice and was eventually returned to his home safe and sound. After being separated from his family in Gambell, Alaska, Nanuq's disappearance was noticed by people in Wales, 150 miles away. After a month of searching, Iworrigan was overjoyed to learn that Nanuq had been found.