Don't Drink the Water

Don't Drink the Water is the forty-second episode of Ben 10.

Plot
Growing weak with old age, Hex is seeking out something to make him stay young. So he goes to an old man asking him if he had anything that could make him young. The old man gives the water from the Fountain of Youth and Hex becomes a little younger. At the same time, Max is having difficulties with his aging body, so he decides to impress Gwen and Ben at a fair to show them he's not as elderly as he seems. At the dunking game, Max challenged them to, he and Ben both get splashed, unaware that the water is from the Fountain of Youth. Max regresses into a ten-year-old while Ben becomes a four-year-old. The booth's owner Hector is then targeted by Hex only to fight Ben as Hector escapes. Upon arriving at Hector's farm, they find him tied up as Hex managed to force him into revealing the location of the fountain. It turns out to be the guardian of the fountain, having been charged to do so by Juan Ponce de León 400 years previous.. When the group catches up to Hex, he mentions his plans to use the Fountain of Youth to become immortal. However, Ben uses Heatblast to vaporize the fountain, in the process exposing Hex to enough of the water to turn him into an infant. With the fountain gone, Hector reveals that the effects of the water will wear off without constant exposure. Meanwhile, Charmcaster finds her infant uncle and enjoys taunting him at his expense.

Characters

 * Ben Tennyson
 * Gwen Tennyson
 * Max Tennyson
 * Hector

Villains

 * Hex
 * Charmcaster

Aliens used

 * Cannonbolt
 * Young Fourarms
 * Young Wildmutt
 * Young Stinkfly
 * Young Heatblast

Quotes

 * Young Max: (Referring to Gwen) Never realized she was such a spoiled sport.
 * Ben: Tell me about it.


 * Young Ben: My feet hurt! I don't wanna walk anymore! I'm tired!
 * Gwen: Stop being a baby! Oops, you can't.

Trivia

 * Hector says he will live his life finally, but he will die when he does not drink the water from the Fountain of Youth.
 * When Gwen says they drained Charmcaster and Hex of their powers, she forgot about Charmcaster in A Change of Face.
 * When the water goes all over Ben and Max Ben goes Cannonbolt and he was not young, this might be because the young power had not activated.