Wilderness Survival! A Moonlit Night Awakens Gohan! (荒野のサバイバル! 月夜が悟飯を呼び覚ます, Kōya no Sabaibaru! Tsukiyo ga Gohan o Yobisamasu) is the fifth overall episode in the Dragon Ball Z Kai series. The episode first aired on May 3, 2009. Its original American air date was May 26, 2010. Its Dragon Ball Z counterparts are "Day 1" and "Gohan Goes Bananas!"
Gohan's training begins. After a length of time spent alone on a mountaintop, Gohan sees the moon, which causes him to transform into a Great Ape. Rather than let him rampage unchecked, Piccolo destroys the moon, making any further transformations impossible, and removes his tail, before leaving to begin his own training. Meanwhile, Bulma repairs the scouter, and Yajirobe delivers a summons to Krillin, telling him that the two of them, along with Yamcha, Tien Shinhan, and Chiaotzu, are to report to Kami's Lookout for training.
- Bulma originally wakes Krillin and Master Roshi up by shooting them with a machine gun. In the edited version however, she punches them.
- Mr. Popo is recolored from black to blue.
- Gohan is wearing a diaper, or a badly drawn pair of briefs after shrinking back from his Great Ape form. It is worth noting that even in the so-called "uncut" version, though, Gohan's tail is positioned to hide his male genitals.