In the early 1900s, Miranda attends a girls boarding school in Australia. One Valentine's Day, the school's typically strict headmistress treats the girls to a picnic field trip to an unusual but scenic volcanic formation called Hanging Rock. Despite rules against it, Miranda and several other girls venture off. It's not until the end of the day that the faculty realizes the girls and one of the teachers have disappeared mysteriously.
Australian lawyer David Burton agrees with reluctance to defend a group of Aboriginal people charged with murdering one of their own. He suspects the victim was targeted for violating a tribal taboo, but the defendants deny any tribal association. Burton, plagued by apocalyptic visions of water, slowly realizes danger may come from his own involvement with the Aboriginal people and their prophecies.
In the Australian outback a vicious wild boar kills and causes havoc to a small community.
