"Dragon Ball Z, Vol. 24: Hercule to the Rescue" include chapter 279 - 291.
Included chapters
Chapter 279
Tale 279 Goku Meets Boo!!
Chapter 280
Tale 280 Super Saiyan Level 3!!!
Chapter 281
Tale 281 Boo Unbound
Chapter 282
Tale 282 Goku's Time
Chapter 283
Tale 283 Goku Goes Back
Chapter 284
Tale 284 Where is Gohan?
Chapter 285
Tale 285 The Zeta Sword
Chapter 286
Tale 286 The Fusion Succeeds...?!
Chapter 287
Tale 287 The Earth's Secret Weapon!
Chapter 288
Tale 288 Super Fusion!!
Chapter 289
Tale 289 The Friends of the Djinn
Chapter 290
Tale 290 The Creature of Wrath
Chapter 291
Tale 291 Two Boos?!
Plot summary
Breaking from his master Bobbidi, the rampaging Boo turns the entire world into his candy store! To fight back, Goku transforms into his most powerful form yet, but the world's only hope may lie in Trunks and Goten, the world's youngest and most promising fighters. Using an alien fusion technique, they attempt to merge together to form a single, even more powerful hero! Meanwhile, as Boo destroys city after city, the people of Earth call forth their secret weapon...the seemingly invincible (but actually incompetent) Hercule!