Shark attacks are extremely rare, but when they happen, the first question is always the same: what kind of shark was it? Leading shark scientists Tom "Blowfish" Hird and Rosie Moore, alongside conservationist Kinga Phillips, investigate mysterious attacks from around the world using cutting-edge forensic analysis - including bite pattern comparison, geographic profiling, video evidence, and eyewitness testimony – to identify the species responsible and uncover why these life-threatening encounters occur.

World-class Red Bull high diver Molly Carlson leaps from a helicopter hovering above the open ocean in a bid to complete the highest freefall dive in Shark Week history, targeting a narrow plexiglass cage surrounded by circling reef sharks, or risking a direct plunge into a chum-filled feeding frenzy where seconds mean survival. From concept to execution, this fearless athlete will push herself to the limit with a record-setting stunt that no high diver has ever attempted.