5x2 - Dragon Ball Z: Dragon Box

While out shopping, Gohan happens upon the elderly gentleman Lao, and the young girl Lime, in Chazuke Village. The village's most influential man, Bourbon, is putting the villagers to forced labor, building a dome to shelter them from the Cell Games. When Lao defies Bourbon, the assassin Tao Pai Pai appears before him. However, upon discovering that Gohan is Goku's son, he runs away. Bourbon's schemes are thwarted, thanks to Gohan.