Blue Planet II is one of the most stunning visual achievements of the year. The new BBC America nature documentary takes viewers deep beneath the waves to observe strange creatures and the delicate balance that keeps the world's largest habitat in harmony. 

The miniseries is also a huge sonic accomplishment in representing the sounds of the sea. Crackling icebergs, creatures scuttling along the seafloor, and water washing along — they all contribute to a show that sounds like nothing else. Much of that is thanks to the music, composed by the team of Jacob Shea, David Fleming, and Oscar-winning composer Hans Zimmer. The series' musical themes evoke the undulation of the waves and the beauty of the undersea habitat. What Zimmer describes as the ocean's "epic" quality is evident throughout.

Zimmer, Shea, and Fleming joined Todd this week to talk about writing the series' music, and after that conversation, he talks with series producers Orla Doherty, Mark Brownlow, and James Honeyborne about how the series captured some of the most dazzling images of the ocean ever put on film.