In the episode Close Rick-Counters of the Rick Kind, Morty and his family were sitting around the table, eating breakfast. While he was eating, Evil Rick and Evil Morty opened a portal, walked into the room, they tranquilized the boy himself as well as shot to his grandfather Rick, and took the boy with them. After they brought the boy back into their dimension, they put him in a dungeon, where they would soon torture him. Later in the episode, Morty (C-137) came to save all of the other Mortys, including this one, and set them free to live their lives in freedom.
Morty is a teenage boy. He has brown hair that's worn straight and neatly combed around his head. Morty's head in round and roughly in the shape of a circle, unlike many other characters in the show with their oval-like heads. He has a yellow shirt and blue pants and white shoes. He has a pronounced stutter (even when calm) and his voice is constantly breaking due to the effects of puberty.
Morty is a good-natured impressionable boy who can be somewhat easily manipulated. He has been described as 'challenged' and has difficulty in school. He also has a pronounced stutter. Despite his lack of intellect, Morty has shown to be a good listener and follows directions well. These traits make him the perfect sidekick to his grandfather Rick. He is interested in Jessica, a student in his math class, but is typically horny in general.