Rick Sanchez is the exact definition of mad scientist. He is an alcoholic, he is a genius, he is irresponsible and he is crazy. Rick has just moved into his daughter Beths house and there he remembers that he has a grandson named Morty. Without asking anyone, he decides that he will force him to accompany him to all kinds of adventures so that the boy becomes smart like him and does not become an idiot like Jerry, Mortys father and Ricks son-in-law.
Thus, Rick and Morty begin to live intergalactic adventures despite the fact that the family does not want them to continue doing so. Little by little they have to try to find a balance between their family life and their journeys through space and through different parallel realities, something that is not easy for little Morty who is unable to have a normal life apart from his grandfather.