Set in 1825, Clare (Aisling Franciosi), a young Irish convict woman, chases British officer Lieutenant Hawkins (Sam Claflin) through the rugged Tasmanian wilderness, bent on revenge for a terrible act of violence he committed against her family. On the way she enlists the services of an Aboriginal tracker named Billy (Baykali Ganambarr), who is also marked by trauma from his own violence-filled past.