Inspired by true events, this terrifying tale of man vs. beast follows the ill-fated boat excursion of three vacationers through Northern Australia's mangrove swamps and their fight for their lives against a ferocious crocodile. When their vessel suddenly overturns and the guide (Ben Oxenbould) disappears into the water, Grace (Diana Glenn), her boyfriend, Adam (Andy Rodoreda), and her younger sister, Lee (Maeve Dermody), must think fast.