New Zealand, 1878: With his new private investigation agency established in Palmerston, Sergeant Frank Hardy is ready to marry, but fiancee Mette Jensen won't leave her job. When Frank disappears during a case and a client appears at Mette's shop wanting Frank to investigate a murder, Frank's partner Will Karira and Mette must handle the situation while searching for Frank. Meanwhile Frank awakes in a mysterious underground prison and searches his memory for what he knows or has seen that has lead him to this dank cell.