Australia, 1845: On the way to Kangaroo Island, a passenger ship strikes a hidden reef in a storm and sinks. From prisoners to the privileged, everyone on board is cast into the sea, and only two young women survive: Amelia Divine and Sarah Jones. Just when it looks like they are about to get rescued, Amelia suffers a bad head injury and loses her memory. She can not even recall her name. Using her companion's ill fate to her advantage, Sarah jumps at the chance to change her identity and to escape...