BoJack Horseman, a washed-up actor haunted by his past, enters rehab to confront his addiction and the death of Sarah Lynn, a young actress he influenced. Princess Carolyn, BoJack's agent and former girlfriend, navigates her demanding career and new motherhood. Diane, a writer, seeks personal fulfillment and grapples with her relationships. Mr. Peanutbutter, BoJack's optimistic but often self-sabotaging rival, deals with his own romantic entanglements.

The season's central conflict revolves around BoJack's struggle for redemption and accountability. He attempts to make amends, takes a teaching job, and faces mounting pressure from reporters investigating his past, particularly his role in Sarah Lynn's death. Key turning points include Mr. Peanutbutter confessing to cheating, Diane deciding to move to Chicago, and BoJack ultimately agreeing to tell the truth about his actions. A shocking twist occurs when BoJack realizes he is drowning in his pool, experiencing a surreal vision of deceased characters.

The season concludes with BoJack serving a prison sentence for breaking and entering. He receives a furlough to attend Princess Carolyn's wedding, where he shares final moments with his friends. The season ends with BoJack and Diane acknowledging their separate paths and BoJack returning to prison, his future uncertain.

Season 6 of BoJack Horseman covers episodes 1-16. Here's everything that happened:

Season 6, Episode 1: A Horse Walks into a Rehab - BoJack checks into rehab, grappling with Sarah Lynn's death and his troubled childhood. He reflects on his past through flashbacks, confronting his relationship with alcohol and his parents. Despite initial resistance, BoJack starts to engage with therapy. The episode concludes with BoJack seemingly succumbing to temptation, taking a sip of vodka.

Season 6, Episode 2: The New Client - Princess Carolyn juggles demanding work and new motherhood after her nanny quits. Mr. Peanutbutter visits BoJack in rehab. PC struggles to balance everything, leading to exhaustion. Ultimately, she names her baby Ruthie and finds a way to cope.

Season 6, Episode 3: Feel-Good Story - Diane travels with Guy to Chicago for GirlCroosh, struggling with "feel-good" content. They investigate Whitewhale, uncovering corporate corruption. Diane wrestles with her happiness and relationship with Guy. Inspired by a letter from BoJack, Diane calls Guy, deciding to move to Chicago to be with him.

Season 6, Episode 4: Surprise! - Todd organizes a surprise wedding for Pickles and Mr. Peanutbutter, but the party goes awry when Mr. Peanutbutter confesses to cheating. Diane prepares to move to Chicago, receiving BoJack's blessing. Pickles initially calls off the wedding, but ultimately decides to reconcile with Mr. Peanutbutter, setting conditions for their marriage. The episode concludes with all five main characters sharing a scene together.

Season 6, Episode 5: A Little Uneven, Is All - BoJack is pushed out of rehab to make room for Joey Pogo, leading to Dr. Champ's relapse after drinking vodka BoJack had kept. Mr. Peanutbutter's cheating scandal explodes, but Princess Carolyn spins it into a mental health awareness campaign. Diane struggles with her writing in Chicago. The episode concludes with BoJack calling Todd for support as he leaves rehab.

Season 6, Episode 6: The Kidney Stays in the Picture - The assistants of Hollywoo go on strike, causing chaos. BoJack tries to help Dr. Champ, who relapses. Todd learns his mother needs a kidney, but he already sold his, leading to a classic Todd caper with Diane to retrieve it from Jeremiah Whitewhale. Todd gets the kidney back, and Princess Carolyn helps the assistants get a better deal.

Season 6, Episode 7: The Face of Depression - BoJack embarks on a journey to make amends, visiting Diane in Chicago where he confronts her depression and cleans her apartment. He also gives Mr. Peanutbutter the crossover episode he always wanted. Princess Carolyn hires Judah back. The episode concludes with Diane seemingly happier on antidepressants and BoJack getting a job at Wesleyan.

Season 6, Episode 8: A Quick One, While He's Away - This episode focuses on the women affected by BoJack. Reporters investigate Sarah Lynn's death, interviewing her mother and uncovering that she wasn't alone during her final bender. Hollyhock attends a college party and has an anxiety attack. The episode ends with Peter from New Mexico beginning to tell Hollyhock about his past with BoJack.

Season 6, Episode 9: Intermediate Scene Study w/ BoJack Horseman - BoJack teaches at Wesleyan, finding fulfillment but also dealing with Hollyhock's distance. He advises a student, participates in AA, and Mr. Peanutbutter proposes Pickles sleep with Joey Pogo. BoJack gets a call from Charlotte, realizing the Penny situation is being investigated, leading to a panic attack.

Season 6, Episode 10: Good Damage - Diane grapples with writing her memoir while on antidepressants, struggling to access her past trauma. She finds unexpected success with a middle-grade book, Ivy Tran, Food Court Detective. Meanwhile, reporters Paige and Max visit Penny in New Mexico seeking information about Sarah Lynn. The episode concludes with Charlotte calling BoJack after Penny considers telling her story.

Season 6, Episode 11: Sunk Cost and All That - As reporters investigate BoJack's past, he, Princess Carolyn, Diane, and Todd try to recall his misdeeds. Mr. Peanutbutter inadvertently reveals BoJack's lie about Sarah Lynn's death. BoJack initially denies the accusations to the press, disappointing Diane. However, Princess Carolyn confesses she loves BoJack and won't abandon him. BoJack then decides he will tell the truth.

Season 6, Episode 12: Xerox of a Xerox - BoJack agrees to a televised interview to address his involvement in Sarah Lynn's death, hoping for redemption. However, a second interview, fueled by Paige's investigation, paints him in a negative light, revealing a pattern of abuse. Diane meets Guy's son, and Mr. Peanutbutter and Pickles officially break up. The episode concludes with BoJack facing the consequences of his past actions as the interview airs.

Season 6, Episode 13: The Horny Unicorn - BoJack, now a pariah after his interview, struggles with his dwindling finances and severed relationships. He attempts to reconnect with Hollyhock, but she cuts ties with him via a letter. BoJack then partners with Vance Waggoner and plans to star in "The Horny Unicorn". The episode ends with BoJack spiraling after reading Hollyhock's letter and seemingly giving in to drinking again.

Season 6, Episode 14: Angela - BoJack confronts Angela Diaz, who manipulates him into signing away his rights to Horsin' Around by preying on his guilt regarding Sarah Lynn. Princess Carolyn weighs an offer from Lenny Turtletaub but decides to start her own agency with Judah. Diane and Mr. Peanutbutter find closure as Diane prepares to move to Houston. BoJack relapses, steals from his old house, and watches his Horsin' Around audition tape.

Season 6, Episode 15: The View from Halfway Down - BoJack attends a surreal dinner party with deceased individuals from his past, including Sarah Lynn and Herb, realizing he's drowning in his pool. They perform in a talent show before disappearing through a mysterious door. BoJack calls Diane, but it's a dying dream. The episode ends with a flatlining sound, leaving his fate ambiguous, though a beep follows.

Season 6, Episode 16: Nice While It Lasted - After being saved from drowning, BoJack is sentenced to prison for breaking and entering. He gets a furlough to attend Princess Carolyn's wedding to Judah. BoJack reconnects with Todd and Diane, and dances with Princess Carolyn. The episode ends with BoJack and Diane on the roof, acknowledging their drifting apart and the end of their close relationship. He returns to prison, his future uncertain.