Freaky Gwen Ben

Freaky Gwen Ben is the fourth episode of Ben 10.

Plot
Max takes the kids to a swap meet where the two can't seem to get along. Inspired by this, Hex switches Ben and Gwen's bodies so they can't stop his latest plan.

Major Events

 * Hex makes his debut.
 * Diamondhead and Upgrade make their debut.

Characters

 * Ben Tennyson
 * Gwen Tennyson
 * Max Tennyson
 * Hippie Vendor (first appearance)

Villains

 * Hex (first appearance)

By Ben

 * Diamondhead (first appearance)

By Gwen

 * Four Arms (in Ben's body; intended alien was Grey Matter)
 * Upgrade (in Ben's body; first appearance)

Allusions

 * Wildmutt_Hat.png hat that Ben wore looks exactly like Wildmutt's head.

Trivia

 * This was aired as the second episode in Australia and Asia.