Episode 1: Edge of Tomorty: Rick Die RickpeatRick and Morty explore the concept of time loops. Morty accidentally kills Rick, leading to a loop where Rick keeps dying until Morty learns a lesson about time.
Episode 2: The Old Man and the SeatRick's obsession with a special toilet leads to him going to great lengths to reclaim it, while Jerry tries to fit in with Rick's friends.
Episode 3: One Crew Over the Crewcoo's MortyRick, Morty, and the crew engage in an elaborate heist, playing with heist movie tropes, only to find out that Rick was the mastermind behind it all.
Episode 4: Claw and Hoarder: Special Ricktim's MortyRick and Morty bond with dragons, leading to a love triangle between Rick, Morty, and his dragon, Balthromaw. Summer also gets involved with a dragon.
Episode 5: Rattlestar RicklacticaOn a planet of sentient snakes, Rick and Morty inadvertently cause a time travel paradox involving snake civilizations, leading to a snake war.
Episode 6: Never Ricking MortyA meta-narrative episode where Rick and Morty board the "Story Train," exploring various storylines and narrative concepts, ending with a twist involving Evil Morty.
Episode 7: PromortyusRick and Morty visit a planet where face-hugging parasites turn hosts into predators. They must navigate this survival scenario while dealing with their own dynamic.
Episode 8: The Vat of Acid EpisodeMorty convinces Rick to give him a save point device, leading to a series of misadventures where Morty tries to manipulate events to his advantage.
Episode 9: Childrick of MortRick and Jerry go on an adventure where they end up creating a new race of beings, exploring themes of creation, responsibility, and Jerry's self-worth.
Episode 10: Star Mort Rickturn of the JerriThe season finale involves Space Beth (or is she?) returning to Earth, leading to a battle against the Galactic Federation, now led by Tammy. The episode ends with the revelation that there are two Beths, and neither knows who is the original.
Season 4 of "Rick and Morty" continues to blend science fiction with dark humor, while further developing character arcs, especially around Beth's identity and the consequences of Rick's actions. It also introduces new elements like the Story Train and explores the show's meta-narrative aspects.