Goku's journey to Namek continues as he trains in heavy gravity. Unfortunately, a magnetic storm causes the Gravity Machine to go out of control. Goku will have to survive the most intense gravity he has ever experienced. Meanwhile, Krillin returns to Bulma's cave with the One-Star Dragon Ball he got from Grand Elder Guru, but Vegeta and Zarbon follow him there and Vegeta fights Zarbon. Zarbon is forced to transform again, but Vegeta gains the upper hand this time.