- This article is about the episode. For the soundtrack, see Gohan's Metamorphosis (soundtrack).
Chi-Chi cleans the dishes while Krillin wakes up and leaves Goku's house. While he is driving back to the Kame House, he can not understand why he was unable to tell Chi-Chi about Gohan and Goku's misfortune. When he gets back, Bulma and Master Roshi are also mad at him for not telling her and for not getting Goku's Dragon Balls. After another night of hard work, Bulma is finally able to make the scouter display fighting forces in numerical format. She reads Master Roshi's power level at 139, Krillin's power level at 206, and the Turtle's power at 0.001. Just then, Yajirobe arrives at the Kame House and tells Krillin to round up Yamcha, Tien Shinhan and Chiaotzu to be trained by Kami in preparation for the Saiyans. Yajirobe also relays the message to not wish Goku back for a whole year. As Yajirobe leaves, another plane approaches in the distance, but as it draws nearer, we can see it is Chi-Chi and Ox-King. When they land, Chi-Chi wants to see Goku and Gohan, so Master Roshi tells her the entire story. Upon hearing this, Chi-Chi faints.
Back in the desert, Gohan sees a stampede of dinosaurs run by and asks them for assistance in getting off of the pillar. Of course, they can not hear him and run off. Piccolo, who had been watching from a distance, says that training Gohan is a lost cause. The scene switches to night, Gohan notices that he has a shadow, and looks at the full moon for the first time.Gohan transforms into a Great Ape main power source is their tails, and how they transform in the light of a full moon. Piccolo destroys the moon, causing Gohan to transform back into his normal form. Piccolo removes his tail, and gives him a uniform similar to Goku's Turtle School uniform, and a sword. Piccolo flies off leaving Gohan alone once again.
- The moon is destroyed by Piccolo.
- Gohan's tail is cut off for the first time.
- First appearance of Yajirobe since the end of Dragon Ball.
- Gohan's thought bubble of an apple tree is painted over for unknown reasons.
"You'll laugh at your fears when you find out who you really are."
"Man, talk about your long and winding roads!"
"You were a good pupil...crazy though."
- This episode marks the first appearance of the term "Next dimension", a phrase used throughout the Saban dub to cover up words such as death and kill.
- Piccolo removes Gohan's tail, despite the fact that the moon was already destroyed. This may have just been done as a further safety precaution.
- When Krillin is trying to decide what to say to Chi-Chi, one of the things he thinks about saying is "Goku is trapped in another dimension and Gohan's been kidnapped again." This might refer to Gohan being kidnapped by Raditz at the beginning of the series or to the movie Dragon Ball Z: Dead Zone where Garlic Jr.'s henchmen kidnapped Gohan, and now being taken by Piccolo to be trained.
- Chi-Chi is seen driving a hovercar in this episode, but in a later episode she states that she can not drive.