A thriller that unflinchingly reveals the dark side of Australia, based on a true event. 1999: A horrific incident occurs in the Australian town of Swan Hill: Four teenagers go camping in the bush to ring in the new millennium and vanish without a trace. While part of the population believes it to be a tragic accident, others are convinced it was a violent crime. However, the disappearance of the teenagers is never solved. Present day: A mother from Swan Hill suffers a nervous breakdown. She swears she has recognized one of the children who went missing in 1999 as an adult in Melbourne. No one believes the mentally unstable woman. Until London police officer Rachel Buchanan, who is participating in a police exchange, agrees to reopen the old case. In Swan Hill, the investigator encounters contradictions.