LOUISVILLE, Ky. (WHAS11) - - A ground breaking event is happening in the waters near Cape Cod and a Louisville native is at the center of it.
Chris Fischer, the brother of Louisville Mayor Greg Fischer is catching, tagging, then releasing great white sharks in the Atlantic Ocean.
Fischer's show "Shark Wranglers" airs on The History Channel, and follows Fischer and his team as they catch and release great whites all over the world.
This is the first time they're filming in The United States.
Click the video player above to view, you may also follow the sharks by clicking here.