Pizza Steve sneaks onto a roller coaster at Uncle Grandpa Land; Andrew W.K. helps throw a party.
The gang go undercover to taste the taco comet; Pizza Steve sneaks onto a roller coaster at Uncle Grandpa Land.
Julie Bowen ("Modern Family"); Adam DeVine ("Pitch Perfect 2"). Also: Imagine Dragons perform.
Uncle Grandpa overstays his welcome; the gang go undercover to taste the taco comet.
A mysterious package plagues the gang; Uncle Grandpa overstays his welcome.
A feisty college student gives her school's a cappella group a much-needed makeover by adding some modern hits into the mix during the run-up to a big competition.
The guys take a "man trip" to get their macho mojo back.
Mayhem ensues when Jillian becomes the boss at work.
The guys have a wild night at a neighbor's house that causes them to reassess their friendship.
The tree inside the RV talks to Uncle Grandpa and he must convince the gang of his sanity.
On the guest list: Jack Black; Adam DeVine; Hannah Hart.
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