"Dragon Ball Z, Vol. 5: Dragon Ball In Space" include chapter 47 - 58.
Included chapters
Chapter 47
Tale 47 Goku's Request
Chapter 48
Tale 48 The Bittersweet End
Chapter 49
Tale 49 Destination Namek
Chapter 50
Tale 50 The Mysterious Spaceship
Chapter 51
Tale 51 3...2...1...Lift Off!
Chapter 52
Tale 52 The Return of Vegeta
Chapter 53
Tale 53 Planet Namek, Cold and Dark
Chapter 54
Tale 54 The Mysterious Strangers
Chapter 55
Tale 55 Vegeta's True Power!
Chapter 56
Tale 56 Goku Returns! Again!
Chapter 57
Tale 57 Son Goku's Spaceship
Chapter 58
Tale 58 Namekian Fear
Plot summary
In the aftermath of his battle with Goku, Vegeta retreats from Earth, vowing revenge. In search of a way to resurrect their dead friends, Kuririn, Gohan, and Bulma go into space in search of Namek--Piccolo's home planet where the Dragon Balls were originally made. But Namek has become a battleground, where evil emperor Freeza and his minions are slaughtering the peaceful Namekians to fulfill Freeza's wish for immortality! Stranded on a planet full of enemies, the three astronauts radio back to Earth...but "help" comes from an unexpected source as Vegeta turns against his former master Freeza in order to get the Dragon Balls for himself!
