Rick hosts a dinner for his flamboyantly hyper-sexual arch-nemesis, Mr. Nimbus , to renegotiate a treaty after Morty inadvertently crashes their ship into the ocean .

The subplot involving Beth and Jerry exploring their marriage through a potential threesome with Nimbus was seen as a refreshing move away from their constant fighting in previous seasons .

Critics noted that Morty takes center stage, showing both his growth as an independent character and the cynical influence Rick has had on him .

Described as a "flamboyant fusion of Aquaman and Namor," Nimbus was well-received as a hilarious new foil who actually succeeds in making Rick look pathetic .

While trying to manage a date with his long-time crush Jessica, Morty repeatedly enters a pocket dimension where time moves much faster (a "Narnia-like" world) to retrieve aged wine for Rick and Nimbus . His brief visits inadvertently cause centuries of war and societal collapse for the dimension's inhabitants, who come to view Morty as a mythological "Dark Child" . Critical Consensus