In September 2017, Nan Hauser, a dedicated whale biologist, has the encounter of a lifetime while researching humpback whales off the coast of Rarotonga and the Cook Islands in the South Pacific Ocean. As she was unknowingly pursued by a fearsome shark, humpback whales intervene to save her life. Tune in to hear this incredible tale of Nan Hauser and the altruistic humpback whale.