Uncle Caveman
In prehistoric times, Uncle Grandpa must save his new friend, Mr. Gus, from a number of hungry cavemen.
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More from this season
S1 E1
Belly Brothers
A kid's struggle with putting on his shirt for school due to his belly, Uncle Grandpa tries to make it up to him by going with him in a Night Wolf shirt and becoming belly brothers.
S1 E2
Tiger Trails
In the final moments of helping a kid, Uncle Grandpa just needs his trusty Giant Realistic Flying Tiger, but when he finds out she's gone, it sends UG on a journey to find the tiger and figure out why she left.
S1 E3
Space Emperor
When UG mistakes a kid in a costume for an evil space emperor, he sends him to another dimension where he becomes an actual evil space emperor and UG must figure out some way to bring him home.
S1 E4
Funny Face
When Uncle Grandpa accidentally unleashes a floating Funny Face that's so funny you laugh yourself to insanity, the guys realize that only Gus, seriousness can save them, but will he help them after they've hurt his feelings?