To protect his son, an ex-special forces operative (Sam Worthington) plunges into the criminal underground for one final mission in this muscular, emotionally charged thriller.

After a devastating loss, Ryan and his young son Billy are struggling to reconnect. Billy carries a deep sense of guilt for something beyond his control, while Ryan is adrift in life, having retired from the Australian Army's elite SAS regiment and suffering from PTSD.

In a desperate attempt to protect his son from being taken away, Ryan introduces Billy to the criminal underworld, where his former SAS brother runs things. But as they become increasingly entangled in the dangerous world of organized crime, Ryan begins to realize that the consequences of his choices may be far greater than he ever imagined.