In the third episode of the series, the explorer travels to Alaska, the northernmost American state and its last great wilderness, to discover how three communities have learned to survive amid its wild terrain. He begins by sampling life with a family of salmon fishers, before heading to Nome, a city famed for a gold rush at the start of the 20th century - and discovers its modern-day prospectors often find their best hauls at the bottom of the sea. Finally, in the far north, Bruce witnesses the annual whale hunt of the Inupiak people whose ancient tradition is now at odds with the modern world and questions what is more important: the life of a whale or the death of a culture?