In the remote waters of the Eyre Peninsula in South Australia, rumours persist of massive 18-foot mega sharks lurking in the depths. Strangely, these colossal creatures are rarely seen at the popular Neptune Islands, a renowned cage-diving destination at the peninsula's heart. Could it be that these mega sharks have been hiding among the nearby island chains to avoid human encounters?

Joining forces are Dr. Lauren Meyer, a globally recognised white shark expert, and Colin Thrupp, an underwater cinematographer and cage diving specialist. Their mission is to tag one of these elusive giants, to uncover the truth behind their mysterious behaviours.

Equipped with a small research vessel, a custom-built shark cage, and cutting-edge satellite tracking technology, they embark on a captivating adventure that delves into the thrilling and perilous realm of shark science, where a single misstep can spell the ultimate sacrifice.