Legends of the Deep features Céline and Fabien Cousteau as they dive deep to explore some of the greatest ocean mysteries of all time. Armed with their family’s passion and pioneering spirit, Céline and Fabien head beneath the waves in search of answers. The waters off Cyprus are home to a mammoth 40-year-old wreck, and the team is determined to find out who sank the infamous Zenobia ferry on just her second voyage. In Shag Harbour, Canada, Céline and Fabien dive to the sea floor to investigate one of the best documented UFO sightings in history. Using the latest technology, the aquatic adventure continues in the infamous Bermuda Triangle. And, Céline and Fabien explore the legend of a sea serpent lurking in the depths in the Great Blue Hole of Belize.