Open Water 3: Cage Dive

A news story unfolds from 21 October 2015, about a shark cage diving boat in Australia that capsized; after several confirmed fatalities and others rescued, a search is underway for the last three missing passengers, tourists from Laguna Beach, California. One week later: A diver is swimming along a reef and finds an underwater camera wedged in some coral with its SD card preserved. The diver is interviewed by the filmmakers, explaining he uploaded the footage to social media after finding it belonging to the three Americans, Josh, his brother Jeff, Jeff's girlfriend Megan, eventually getting ahold of Greg, who lives in Sydney. 18 October 2015: The trio arrive in Sydney, and meet Josh and Jeff's cousin Greg, who is hosting them for a few days before they fly to Adelaide for their shark cage dive. Over the course of their time together it is revealed Megan is having an affair with Josh.