Mizraim, Zackeus, and Yehude are three Hebrew boys from Gezer whose acts of vandalism and rebellion against the ruling Philistine class tend to land the local Hebrew community in hot water. When the three boys pelt Sidon with fish during his trip to Gezer, he retaliates by doubling the tribute of grain the Hebrews of the town must pay to the local temple of Dagon.
Far from deterring Mizraim, Zackeus, and Yehude from their acts of civil disobedience, Sidon's harsh reprisals only serve to fan the flames of the boys' desire to strike back at the Philistine tyranny. Sneaking into the temple of Dagon, Mizraim, Zackeus, and Yehude plaster the idol with mud, then brag about their deed to Zarah and Branan, who've just returned from a fruitless fox hunt.
Realizing that Sidon will become even more angry with the Hebrews than he already is because of this act of sacrilege, Zarah asks Branan to help her carry the large statue of Dagon out of the temple down to the town fountain to be washed. When the siblings can't gain access to the fountain because of the local city patrol, they decide to transport the statue down to the riverbank and splash the idol clean.
Unfortunately, just before Zarah and Branan are able to return the idol to its place in the temple, Branan loses grip on the statue and it falls back into the mud, filthier than it was when they started. In their rush to get the idol back on its dais before the temple priests arrive, Zarah and Branan place Dagon facing the wrong way. As luck would have it, however, the Dagon priests, who arrive at the temple a few seconds after Branan and Zarah leave interpret the dirty, misplaced idol as a sign from the gods that the Philistines' treatment of the Hebrews has been too harsh.
Just when Mizraim, Zackeus, and Yehude are convinced that their political efforts have been completely ineffective, they notice that the temple priests have opened the storehouses and returned the food Sidon exacted from the Hebrews back to the Jewish community.