Ep. 57: Gohan investigates a signal while Vegeta defeats Zarbon for a Dragon Ball and Goku trains in high gravity.
Aired on August 8, 1990

Gohan detects an energy signal from the village destroyed by Vegeta and heads to investigate. Krillin returns to the cave to share good news with Bulma, but Zarbon and Vegeta follow him. Upon seeing Krillin possess a Dragon Ball, the two rivals fight for it. Zarbon underestimates the battle, unaware that Saiyans grow stronger after recovering from injuries, allowing Vegeta to defeat him easily. Vegeta then retrieves the Dragon Ball and returns it to his stash of five others. Meanwhile, Goku’s ship encounters a magnetic storm that malfunctions the gravity machine, raising the gravity to 100 times normal. Despite the difficulty, Goku embraces this as a new challenge and begins his intense training.
Episodes
- Ep. 53 · Zarbon reveals his true power and defeats Vegeta in a lake
- Ep. 54 · Krillin meets Guru and receives the final Dragon Ball while Zarbon retrieves Vegeta for Frieza
- Ep. 55 · Piccolo assists with King Kai's second test while Frieza's forces revive Vegeta on Namek.
- Ep. 56 · Zarbon tasked with locating Vegeta and the Dragon Balls within one hour under threat of death.
- Ep. 57 · Gohan investigates a signal while Vegeta defeats Zarbon for a Dragon Ball and Goku trains in high gravity.
- Ep. 58 · Frieza summons the Ginyu Force while Gohan conceals a Dragon Ball from Vegeta.
- Ep. 59 · Bulma encounters a protective crab while retrieving a Dragon Ball from the Namekian waters.
- Ep. 60 · Bulma secures a Dragon Ball but is captured by Frieza's subordinates who take her along
- Ep. 61 · Krillin and Gohan reach Guru while Vegeta pursues them for the Dragon Ball