The friends hear the histories of Yookia and Zookia. Sam's desperate to connect with Pam, but a suspicious Guy doesn't trust her.

Pam and Sam team up for an undercover job. A scampering squail leads E.B. to the top of the border wall, where she makes a mysterious new friend.

Sam and his mom track the Moo-Lacka-Moo to a tropical island crawling with surprises. Guy gets Michellee's message and can't believe his eyes.

So who gets the Moo-Lacka-Moo? With the fate of Yookia and Zookia hanging in the balance, the friends must decide where their loyalties lie.

Butter side up, butter side down: The great butter battle is brewing! Can our heroes work together to stop it in time?