Shadowlands

Existing in the southwest corner of New Zealand's South Island is tough. Penguins here must evade the clutches of giant sea lions, who in turn must battle the harsh elements. (S1, ep 1)

Explore winter's impact on the deep fjords and tidal lagoons of southwestern New Zealand. As bottlenose dolphins escape the freezing fjords, longfin eels are called back to sea. (S1, ep 2)

The southeastern coast of New Zealand is where young marine animals become adults. Here, young whales, dolphins and seals strike out on their own adventures for the first time. (S1, ep 3)