Aquarius

LAPD Detective Sam Hodiak and undercover officer Brian Shafe investigate the disappearance of Emma Karn, a teenage girl who has become involved with cult leader Charles Manson.

Hodiak and Shafe work to solve a complex murder case against a backdrop of increasing racial tensions. At the same time, Manson pressures Emma's father, Ken Karn, to arrange an introduction to a music industry executive.

A drug dealer is found dead, pointing suspicion toward Shafe's informant. Shafe and rookie officer Charmain Tully embark on an undercover operation targeting the Manson family, which quickly spirals into a dangerous and high-stakes mission.

Hodiak explores the murder of Art Gladner by looking into his late wife Lucille's life, particularly her involvement with a burlesque club. Meanwhile, Manson conceals Emma, but Hodiak, pressured by Grace, eventually locates her and returns her home.

A murder in South Central escalates tensions involving the Black Panthers, while Emma flees her home amid the turmoil, and Hodiak confronts Manson with violent consequences.

Charlie begins to recover from his injury. Charmain discovers a potential lead in the case, while Hodiak investigates a man who has been harassing Shafe's family. With Shafe's help, Hodiak attempts to send a message to his son.

Cutler is visited unexpectedly, prompting a shift in his routine. Meanwhile, Hodiak and Shafe investigate the murder of a prominent Hollywood figure. Charlie spends time at a gun store, exploring his options.

Karn deals with hidden past issues while Manson, frustrated by his failure to impress a music producer, takes out his anger on his loved ones. Meanwhile, Shafe faces an unfortunate setback and Hodiak experiences the loss of a long-time companion.

Charmain's initial ride-along takes a deadly turn when her fellow officers are shot, marking the beginning of a wave of police killings.

Charlie puts Emma's loyalty to the test, while Shafe successfully completes Guapo's challenge. Following his first acid trip induced by Manson, Hodiak assists a fellow detective with a hidden agenda.

Tensions arise as Bunchy asks Hodiak to investigate his brother's murder, prompting the Hodiak family to unite in supporting Walt, while Charlie's mother makes an unexpected visit.

The impact of Emma's absence becomes evident as the Manson family works on a documentary, and Hodiak negotiates with Ken Karn in an effort to protect his son.

Emma arrives just in time for Mary's labor, while Hodiak's plan to help Walt unravels, and a murder probe leads to unexpected complications.

Hodiak is unsettled by threatening fan mail while Charmain undertakes a risky undercover assignment and Brian uncovers Roy's hidden agenda. Meanwhile, Ken confronts Hal, and Charlie worries that an old prison acquaintance has returned to settle an old debt.

Charlie devises a strategy to help Ralph and his team, Hal confronts a disturbing dream upon waking, and Hodiak secures a favor for his son.

Charlie forms a connection with a member of the Beach Boys, while "Tex" becomes involved with the Manson Family. Meanwhile, Brian takes on a murder investigation, showcasing his sharp instincts and receiving recognition for his efforts.

Set against the backdrop of Martin Luther King, Jr.'s assassination, Hodiak investigates a murder in an African American neighborhood while working to prevent civil unrest. Kristin's growing ties to the Black Panthers strain her marriage to Shafe, and Charmain wraps up a drug investigation, confronting the personal toll of her undercover role.

An internal affairs investigation into Hodiak is complicated by an unexpected tragedy, while Dennis Wilson's growing relationship with Emma stirs tension with Manson. Dennis brings Emma and Manson to meet a record producer at 10050 Cielo Drive, a location that will later become significant to the Tate family.

Shafe struggles with worsening addiction as Hodiak assists a former war comrade in uncovering his blackmailer. In parallel, Karn works to gather compromising information on Bobby Kennedy, while Grace develops a renewed passion for political life.

Manson and his followers encounter an unexpected blessing and a looming threat. Hodiak faces obstacles in his investigation of the photographer killer, prompting him to take direct action. Meanwhile, Grace begins making arrangements for Emma, and tensions rise in Shafe and Kristin's relationship following a violent clash between the Black Panthers and the LAPD.

Shafe faces personal turmoil at the Tate crime scene while Manson investigates Emma's disappearance, leading him to Hodiak. Meanwhile, Ken Karn makes significant strides in international diplomacy.

Sharon Tate pleads for her life as Sadie refuses to show compassion. Manson attempts to locate Dennis Wilson, while Hodiak discovers Emma in a sanatorium and seeks assistance to free her. Meanwhile, an unemployed Ken Karn reconnects with an old acquaintance.

Ken and Emma work to mend their relationship, though Emma remains focused on locating Charlie. Hodiak pursues the truth behind Bunchy's murder, even as it jeopardizes Charmain's professional future. Shafe encounters a familiar face during his time at rehab.

Hodiak faces renewed scrutiny from Internal Affairs due to departmental changes, leading to a diminished role at the precinct. At the same time, the Manson family experiences a potential boost as Terry Melcher arrives interested in producing Charlie Manson's music.

Hodiak confronts the enigmatic serial killer directly after receiving a series of disturbing images, while Manson orders Bobby, Mary, and Sadie to extract money from Gary Hinman through increasingly aggressive tactics.

Hodiak, now retired from the police force, pursues a serial killer who has haunted him for months, stripped of his former authority and protection. Meanwhile, Manson dispatches Tex, Sadie, Emma, and Patty to 10050 Cielo Drive, where they become entangled in a notorious and historic crime.