"" is the season finale of BoJack Horseman Season 4 (Episode 12), which first aired on September 8, 2017. The episode is widely noted for its rare hopeful ending for BoJack and its emotional turning point for other major characters. Plot Summary
: BoJack discovers through Beatrice’s past that Hollyhock is actually his half-sister, fathered by Butterscotch with their maid, Henrietta. After tracking down Henrietta's contact information, he delivers it to Hollyhock’s eight adoptive fathers. The season ends with BoJack smiling—a first for a finale—as Hollyhock tells him she "never had a brother". [S4E12] What Time Is It Right Now
: She successfully pitches a new television series titled Philbert to executives and manages to get BoJack to star in it, patching up their professional relationship. She also begins considering adoption. "" is the season finale of BoJack Horseman