In 1825, Claire, a 21-year-old Irish convict, chases a British soldier through the rugged Tasmanian wilderness, bent on revenge for a terrible act of violence he committed against her family. She enlists the services of an Aboriginal tracker named Billy, who is also marked by trauma from his own violence-filled past.

When Cecilia's abusive ex takes his own life and leaves her his fortune, she suspects his death was a hoax. As a series of coincidences turn lethal, Cecilia works to prove that she is being hunted by someone nobody can see.