“Zarbon says it was probably a malfunction, but says it exploded as a result of keeping track of Vegeta's power... over 22,000.” Weebly · 3 years ago Episode Guide | Dragon Ball Z TV Series - Kanzenshuu
The aliens use mind-reading abilities to create an elaborate illusion of Namek, making the landscape and its inhabitants appear exactly as Gohan and his friends expect them to be.
In , titled " The Search Continues ," the story focuses on Gohan, Krillin, and Bulma's arrival on what they believe is Planet Namek, though it is eventually revealed to be a "Fake Namek". Plot Summary
Meanwhile, on the real Planet Namek, Vegeta showcases his new ability to suppress and raise his power level at will. His power surge to 24,000 causes the scouters of Frieza's henchmen, Zarbon and Dodoria, to explode in disbelief. Character Perspectives
Community sources from platforms like Kanzenshuu note that this episode begins a filler arc where the heroes are tricked into "quests" for the Dragon Balls.