Just why do humpback whales sing? That's the question that has marine behavioral biologist Nate Quinn and his crew poking, charting, recording, and photographing very big, wet, gray marine mammals. Until the extraordinary day when a whale lifts its tail into the air to display a cryptic message spelled out in foot-high letters: Bite me. Trouble is, Nate's beginning to wonder if he hasn't spent just a little too much time in the sun. 'Cause no one...

A filmmaker investigates his traumatic encounter with a 30-ton humpback whale that breached and almost landed on him while he was kayaking. What he discovers raises far bigger questions about humans' relationship with whales and their future.

Maggie and her team of marine biologists dive into the ocean with a pod of humpback whales to record their songs and learn about how whales communicate.