Complex sentence: They see that he is fearful of being a failure in his job and save him from being embarrassed in school and in return he helps them return to reality and in the process convincing Goldenfold to raise Morty's grades.
Split into simpler sentences: They see that he is fearful of being a failure in his job and save him from being embarrassed in school. In return, he helps them return to reality, and in the process convince Goldenfold to raise Morty's grades.