Secretariat is released nationally, and is an instant hit. Newly confident, BoJack and Todd crash a wedding dinner rehearsal, where BoJack accidentally convinces a bride to back out of her wedding. Ultimately, BoJack is forced to help her get back together with her fiancee.
Meanwhile, Todd befriends Emily again at the wedding, and nearly has a one-night stand with her, only to back out at the last minute. On Princess Carolyn's night off, she has three dates, the last of which is with a mouse, with whom she hits it off. Finally, Diane and Mr. Peanutbutter learn that Diane is pregnant after she has a drug experience.