When the U.K. trade minister's daughter is found dead in Sydney Harbor under suspicious circumstances, detectives delve into the dark secrets of those close to the victim to piece together the mystery.

A public appeal by Abigail wins over the press as Max's attempts to win over Meg fail, and the case throws open more questions than answers.

Abigail and Simon prepare to take Sophie's body home as evidence from an anonymous informant provides a motive for murder.

Abigail faces increasing pressure to close the trade deal, and a breakthrough fills a crucial gap in the case timeline.

Max and Meg come closer to the truth; Simon informs Lloyd about his retirement, only Lloyd reveals a hidden card which changes everything.

The investigation team closes on those responsible; Max and his sister-in-law make decisions regarding their private lives.