Around the world, millions of people depend on fish for food and livelihood. But what if official government data is drastically underestimating how many fish are being caught? How close are we to a global catastrophe? Government and industry regulators track the quantity of fish caught and claim the oceans can handle it, but global fish numbers have dropped significantly in recent decades. A new Smithsonian Channel special showcases an exhaustive 15-year investigation – from the Atlantic coastline to the reefs of the Bahamas and the shores of Senegal – to reveal stark new findings about our marine ecosystems. Narrated by actor and conservationist Ted Danson, a passionate advocate for the world’s oceans, AN OCEAN MYSTERY: THE MISSING CATCH premieres on Earth Day, Saturday, April 22, 2017 at 8 p.m. ET on Smithsonian Channel.