archytele The Vault
Season guide

Uncle Grandpa: Season 4

26 episodes Premiered Jul 1, 2016 Updated Oct 23, 2026
Previously on Uncle Grandpa

Season 4 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Picks up essential narrative continuity directly following the events of Uncle Grandpa Season 3.
  • ⚡ Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
  • ⚡ Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
  • ⚡ Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
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Season 4 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 4 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 4: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

12%
88%
Mytharc (3): Crucial lore & season climaxes
Core (23): Character development & subplots
Side Quest (0): Standalone / filler
S4·E1 Mytharc

Jerky Jasper

Jul 1, 2016 · 12 min

Uncle Grandpa goes to great lengths to meet Pizza Steve's imaginary friend.

S4·E2 Core

Dinosaur Day

Jul 1, 2016 · 12 min

Pizza Steve's jealousy ruins Uncle Grandpa's Dinosaur Day celebration for Mr. Gus.

S4·E3 Core

RV Olympics

Aug 4, 2016 · 12 min

Pizza Steve and Mr. Gus compete in the RV Olympics.

S4·E4 Core

Uncle Melvins

Aug 4, 2016 · 12 min

Legendary rock band, the Melvins team up with Uncle Grandpa to help a young girl who wants to win her school's talent show.

S4·E5 Core

Uncle Baseball

Oct 22, 2016 · 12 min

A failing little league team on the brink of giving up gets help from UG and some Major League Baseball players.

S4·E6 Core

Costume Crisis

Oct 22, 2016 · 12 min

Uncle Grandpa makes improvements to a kid's Halloween costume.

S4·E8 Core

Chill Out

Dec 1, 2016 · 12 min

Uncle Grandpa takes a kid to the North Pole for an epic snowball battle.

S4·E9 Core

The Bike Ride

Dec 5, 2016 · 12 min

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

S4·E10 Core

Mr. Gus Moves Out

Dec 5, 2016 · 12 min

Mr. Gus moves out of the RV and Uncle Grandpa and Pizza Steve try to get him back.

S4·E11 Core

Hiccup Havok

Dec 6, 2016 · 12 min

Uncle Grandpa helps a kid who can't get rid of the hiccups.

S4·E12 Core

MacGuffin

Dec 6, 2016 · 12 min

Uncle Grandpa and a kid embark on a dangerous jungle adventure in search of a legendary MacGuffin.

S4·E13 Core

Gone to His Head

Dec 7, 2016 · 12 min

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

S4·E14 Core

Pony Tale

Dec 7, 2016 · 12 min

Uncle Grandpa grows a ponytail which gains him the attention of a magical pony.

S4·E15 Core

You Can't Handle the Tooth!

Dec 8, 2016 · 12 min

Uncle Grandpa and Mr. Gus must rescue Pizza Steve from the Tooth Fairy.

S4·E16 Core

A Gift for Gus

Dec 8, 2016 · 12 min

Uncle Grandpa's present for Mr. Gus gets loose and causes trouble.

S4·E17 Core

Robo-UG

Dec 9, 2016 · 12 min

Uncle Grandpa builds a robot version of himself to help with his duties.

S4·E18 Core

Lil' Mac

Dec 9, 2016 · 12 min

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

S4·E19 Core

Disappearing Act

Dec 12, 2016 · 12 min

Uncle Grandpa helps a young wannabe magician by teaching her a new trick.

S4·E20 Core

Tongue Tied

Dec 12, 2016 · 12 min

Uncle Grandpa helps a shy kid gain confidence.

S4·E21 Core

Uncle Dummy

Dec 13, 2016 · 12 min

Uncle Grandpa and Pizza Steve try to convince Mr. Gus that his ventriloquist dummy is alive.

S4·E22 Core

Face Fix

Dec 13, 2016 · 12 min

Uncle Grandpa and Pizza Steve help Mr. Gus try to get his face back to normal before an important photo shoot.

S4·E23 Core

The Phone Call

Dec 14, 2016 · 12 min

A threatening phone call from a stranger causes the gang to panic.

S4·E24 Core

Uncle Cupid

Dec 14, 2016 · 12 min

Cupid, too lonely to perform his Valentine's Day duties, comes to Uncle Grandpa for help.

S4·E25 Mytharc

Doctor Visit

Dec 15, 2016 · 12 min

Uncle Grandpa hates going to the doctor, but he's overdue for an important vaccination.

S4·E26 Mytharc

Cake Mistake

Dec 15, 2016 · 12 min

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

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