Rick C-137 and Morty Prime (our Morty) are thrown back to their original realities. Morty lands on the Cronenberg-world (from S01E06 "Rick Potion #9"), now ruled by a mutated, post-apocalyptic society where his original parents, Jerry and Beth (now mutated monsters), have been searching for him. Rick lands on his destroyed home planet (where his original Beth and Diane were killed). They must use a "Central Finite Curve" loophole to reassemble the family.
Jerry is dumped on a bland, suburban "Jerryboree" type dimension. Summer lands on a Mad Max-style dimension where a nihilistic version of herself rules. Space Beth lands on a dimension where she is a pacifist art dealer. They each must fight their way to a reunification point. rick and morty s06e01 satrip