I Am Saiyaman!
Consulting the all-wise Bulma, Gohan seeks her aid in hiding the fact that he is a Z-Fighter from his high school classmates. Bulma develops a "superhero" suit that contracts and retracts in an instant, allowing Gohan to make quick changes whenever it is necessary for him to use his awesome powers. Thus is born a brand-new superhero called the Great Saiyaman -- but alas, the secret is not safe for long.
Aired 15/09/1993EP 201 - I Am Saiyaman!
Dragon Ball Z
Goku is back with his new son, Gohan, but just when things are getting settled down, the adventures continue. Whether he is facing enemies such as Freeza, Cell, or Boo, Goku is proven to be an elite of his own and discovers his race, Saiyan. He meets many new people, gaining allies as well as enemies, as he still finds time to raise a family and be the happy-go-lucky Saiyan he is.
(Source: Anime News Network)