In prehistoric times, Uncle Grandpa must save his new friend, Mr. Gus, from a number of hungry cavemen.

A young girl must face the consequences of her new found popularity after Uncle Grandpa molds her mouth into "duck lips."

When the tree inside the RV begins talking to Uncle Grandpa, he must convince the gang that he's not going crazy.

When Uncle Grandpa and Pizza Steve cause a ruckus at the movies, Mr. Gus is forced to play the hero in order to save the day.

Pizza Steve's father comes to visit the gang and almost immediately gets on their nerves with his over the top antics. Pizza Steve must get rid of his dad, and prove to himself that he doesn't need to live in his father's shadow any longer.

MG fixes up the ballroom and warns UG and PS not to step a foot in there until he gets a chance to use it. But UG mistakenly tosses a ball into the room. Now PS and UG have to retrieve the ball without touching one foot to the ground.

The gang attends the premiere of Majestico and Uncle Grandpa Boy, a movie about a little girl who wants to be a super hero.

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Pizza Steve tries desperately to make the others in the RV interested in his new game console.

Aunt Grandma is back and still bent on ruining Uncle Grandpa

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A young boy must learn to eat his spinach in order to save UG and the others from a rowdy gang of evil vegetables.

Uncle Grandpa and Pizza Steve run against one another in the RV presidential race.

Pizza Steve desperately tries to prevent the gang from finding out his shameful secret.

Uncle Grandpa's new found confidence makes his head big.

Mr. Gus's nephew terrorizes Uncle Grandpa and Pizza Steve.

Uncle Grandpa and Mr. Gus eat a cake meant for someone else.