Madison Stewart is an inspiring young woman with a passion to protect the creatures most people fear: sharks. Known to many simply as “shark girl,” she’s been diving with sharks since the age of 12. At 14 she dropped out of school to be home-schooled so that she could spend more time in the ocean and film her experiences underwater. Now 20, Madison has made it her life’s mission to safeguard the creatures and the reefs she loves. Her unconventional journey as a conservationist, filmmaker and activist is the subject of a new one-hour documentary, SHARK GIRL, premiering Sunday, June 15 at 8 p.m. ET/PT on Smithsonian Channel.