Aquarius

Hodiak receives some disturbing fan mail as Charmain takes a dangerous plunge undercover and Brian discovers Roy's true intentions. Ken takes aim at Hal as Charlie fears an old prison mate is back to collect a debt.

Charlie cooks up a plan for Ralph and his crew; Hal wakes to a nightmare; and Hodiak gets leverage for his son.

Charlie bonds with a Beach Boy, while "Tex" joins the Manson Family. Hodiak and Grace tread familiar territory as Brian takes a stab at a killer and gets rewarded for his sharp work.

On the day of Martin Luther King, Jr.'s assassination, Hodiak must investigate a murder in a black neighborhood while trying to prevent an imminent riot.

Internal affairs turns up the heat on Hodiak, but a tragedy interrupts the investigation. Meanwhile, Dennis Wilson's courtship with Emma ignites jealousy in Manson.

While Shafe's addiction problems mount, Hodiak helps an old war buddy find his blackmailer. Meanwhile, Karn gathers information to use against Bobby Kennedy and Grace finds a new love for politics.

Manson and the Family receive two surprises: one a blessing, one a threat. As Hodiak tries to investigate a new clue in the case of the photographer killer, a series of roadblocks forces him to take a proactive measure.

Shafe, alone at the bloody Tate crime scene, is confronted by his own demons. As Manson searches for a missing Emma, he ends up on Hodiak's doorstep. Meanwhile, Ken Karn goes to new levels for international diplomacy.

Sharon Tate begs for her life but Sadie has no mercy. Manson tries to track down Dennis Wilson. Meanwhile Hodiak finds Emma in a sanatorium, but will need help to get her out. While, an unemployed Ken Karn reunites with an old friend.

Ken and Emma reconcile but Emma wants to find Charlie. At the expense of Charmain's career, Hodiak is determined to find the truth behind Bunchy's murder. Meanwhile, Shafe sees an old friend at rehab.