Washed-up horse 1990s sitcom actor BoJack Horseman seeks to write an autobiography to reignite his fame, but is too lazy to do so, so his publisher assigns him a ghostwriter, Diane Nguyen. Initially unwilling to meet with her, he invites her to a quinceañera his slacker roommate Todd Chavez throws at his house to pay off a cartel, and is surprised to find that they connect. However, he learns that she is dating his longtime rival and fellow sitcom actor, dopey Labrador retriever Mr. Peanutbutter
BoJack ignites a media firestorm when he fights with a Navy SEAL over a box of muffins and calls the troops "jerks" on live TV. His Persian cat agent and ex-girlfriend Princess Carolyn plans to resolve the issue by making him go on Mr. Peanutbutter's reality TV show and apologize to the SEAL with replacement muffins, which almost goes poorly until Mr. Peanutbutter unintentionally distracts those present with his antics. BoJack finds Diane on the roof, and she asks him to start being honest about
In flashbacks to BoJack's old show Horsin' Around, he neglects the emotions of his young costar Sarah Lynn and instills in her the message to never stop performing. In the present day, Sarah Lynn is a floundering pop star that BoJack takes in after her boyfriend Andrew Garfield breaks up with her, and she begins to manipulate him through his guilt and desire for a family, allowing her to do whatever she wants. While living with him, she informs him that Horsin' Around creator Herb Kazzaz has ter
In 1985, BoJack meets and befriends Herb while failing at standup. In the present, after Diane questions the origin of his relationship with Todd, BoJack decides to help Todd work on the rock opera he has always wanted to make. When Todd finds actual success and posits moving out, BoJack panics and utilizes Margo Martindale to manipulate Todd into buying an addictive video game, causing him to underperform at an investor's showcase and ruin his pitch. Diane's BuzzFeed columnist ex-boyfriend pret
While out east to visit BoJack's publisher, Diane learns that her cruel father has died. She takes him to Boston for the funeral, only for her lazy, immature family to make her pay for it herself and then not bother to show up, having their father's body turned into chum. Diane leaves enraged, but BoJack follows and comforts her, and the two return home. BoJack calls Herb before they leave, but is forced to leave a message when Herb doesn't answer his call. Todd turns BoJack's house into a cash
BoJack develops feelings for Diane after returning from Boston, leading him to drunkenly steal the "D" from the Hollywood Sign as a grand romantic gesture. Knowing he needs to get rid of it, he enlists Mr. Peanutbutter for help, only for him to take all the credit for the theft. As BoJack leaves an honest, intimate voicemail for Diane, Mr. Peanutbutter privately proposes to her, only to make a spectacle of it when she accepts. BoJack convinces Diane to delete the voicemail without listening to i
Princess Carolyn's agency merges with her rival Vanessa Gekko's, who takes her office and client. She tries to get BoJack to do a commercial, but he is more interested in romantically pursuing her, forcing her to get Todd to do it. After Gekko one-ups her multiple times, Princess Carolyn finally succumbs to BoJack's advances and goes on a date with him, only for him to get a foreboding call back from Herb and abandon the date, hurting her. She formulates a plot to lure her former client away fro
In flashbacks to the eighties and nineties, BoJack and Herb are bartenders and aspiring comedians when Herb gets Horsin' Around greenlit by ABC. At the Griffith Observatory, Herb gives Bojack a telescope to signify their bond. As the two grow apart over the years, Herb is outed as gay and BoJack reluctantly lets the network fire him after being offered the chance to play his hero Secretariat in a biopic, which was never made. In the present, BoJack takes Diane with him to prevent him from being
Princess Carolyn starts dating "Vincent Adultman", a man who only BoJack recognizes as three boys in a trench coat. Wanting to disrupt the upcoming wedding between Diane and Mr. Peanutbutter, he hires Martindale to stage a bank robbery, but only ends up moving the wedding up and getting her arrested. Todd becomes Mr. Peanutbutter's driver at BoJack's urging, but turns on BoJack when he realizes he was the one who sabotaged his rock opera; he decides not to tell BoJack when Mr. Peanutbutter confe
Two months later, BoJack has been cast as Mr. Peanutbutter in the movie about the Hollywood Sign and strikes up a relationship with Naomi Watts, who is playing Diane. Todd gains the director's favor and begins changing the movie's script to make BoJack out to be the villain of the story, eventually taking apart the movie entirely. When BoJack confronts him, Todd reveals he had no malicious intentions, but does not forgive BoJack, and Watts explains that she only slept with him to stay in charact
BoJack promises his publisher to write a better book than Diane, but finds himself struggling to start. He, Todd, and Sarah Lynn take drugs together and write a gibberish book, and Todd admits he does not care about the loss of his rock opera because he did not expect anything better from BoJack. BoJack begins to have visions of Diane and Horsin' Around while trying to reach a conclusion about his self-worth, and he has a flashback to his mother Beatrice forcing on him the same advice he did Sar
In 1973, BoJack writes into The Dick Cavett Show while Secretariat is being interviewed, asking what he does when he feels sad. Secretariat tells BoJack to always keep running forward. One month later, Secretariat commits suicide after being banned from racing due to illegally gambling on races. Three months after the release of the book, BoJack wins a Golden Globe and convinces producer Lenny Turtletaub to finally greenlight the Secretariat biopic, with a woman named Kelsey Jannings directing a