Craig Foster, suffering from a loss of purpose, begins a daily diving regimen in the freezing kelp forests at the tip of Africa in order to re-energize himself. What he discovers below the water’s surface is a totally alien motivation in the form of an unusually curious octopus. This beautiful record of an animal’s entire life—something seldom achieved in the wild, let alone underwater—was shot over a full year and explores the habits and personality of a strange, undulating creature that most of us have only ever eaten. Stream on Netflix.