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Season guide

The Mr. Peabody & Sherman Show: Season 4

13 episodes Premiered Apr 21, 2017 Updated Oct 31, 2026

Role: Meticulous television and film archivist. Task: Produce a JSON object for "The Mr. Peabody & Sherman Show" Season 4. Constraints: Use ONLY provided SYNOPSIS and SOURCES. No invented titles, names, dates, counts, awards, ratings, box-office, viewership, or plot points. Omit details not in the material. Style: Original, neutral, encyclopedic prose in plain text. Format: JSON only (no markdown, no asterisks, no he

Previously on The Mr. Peabody & Sherman Show

Season 4 Lore Primer

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

  • ⚡ Directly follows the overarching narrative developments of The Mr. Peabody & Sherman Show Season 3.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season overview

Role: Meticulous television and film archivist.
Task: Produce a JSON object for "The Mr. Peabody & Sherman Show" Season 4.
Constraints:
Use ONLY provided SYNOPSIS and SOURCES.
No invented titles, names, dates, counts, awards, ratings, box-office, viewership, or plot points.
Omit details not in the material.
Style: Original, neutral, encyclopedic prose in plain text.
Format: JSON only (no markdown, no asterisks, no headings, no bullet points).
Keys: overview (160-220 words) and primer (array of exactly 4 concise bullet points).
TMDB Season Synopsis: "Peabody and Sherman must defeat an evil cyborg and fix the course of history. Zaniness continues at the penthouse, and our heroes switch bodies!"
Source [1]: Title: The Mr. Peabody & Sherman Show (2015). Genre: Animation, Family, and Comedy. Overview: The world's smartest dog and his boy host a zany late-night comedy show from...
Source [2]: Title: The Mr. Peabody & Sherman Show (TV Series 2015–2017).
Source [3]: Overview: The world's smartest dog and his boy host a zany late-night comedy show from a swanky penthouse, with time-traveling historical figures and a live audience.
Source [4]: Description: American animated jukebox musical comedy television series produced by DreamWorks Animation Television and Jay Ward Productions. Based on "Peabody's Improbable History" (1960s segments from The Adventures of Rocky and Bullwinkle and Friends).
Overview (Target 160-220 words):
The provided synopsis for Season 4 states that Peabody and Sherman must defeat an evil cyborg and fix the course of history. The season features continued zaniness at the penthouse and includes a plot point where the heroes switch bodies. The series itself is an American animated jukebox musical comedy produced by DreamWorks Animation Television and Jay Ward Productions. It is based on the 1960s segments known as Peabody's Improbable History, which originally aired as part of The Adventures of Rocky and Bullwinkle and Friends. The show centers on the world's smartest dog and his boy, who host a zany late-night comedy show from a swanky penthouse. This production features time-traveling historical figures and a live audience. In this specific season, the narrative involves the duo facing an evil cyborg while attempting to correct the course

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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.

38%
62%
Mytharc (5): Crucial lore & season climaxes
Core (8): Character development & subplots
Side Quest (0): Standalone / filler
S4·E1 Mytharc

Return of the Guapos Part 2

Apr 21, 2017 · 24 min

The Guapo Brothers offer to give Peabody and Sherman their show back. But first, they'll have to capture Jesse James, Belle Starr and Genghis Khan.

S4·E2 Mytharc

Return of the Guapos Part 3

Apr 21, 2017 · 24 min

With the outlaws still on the loose, Peabody rushes to protect the Federal Reserve Bank while Sherman attends a school friend's birthday party.

S4·E3 Core

Magic Hiccups / Gaius Maecenas

Apr 21, 2017 · 24 min

Peabody and Sherman shun electricity for a show about Colonial America. Ancient Rome's Gaius Maecenas is short on water for his heated pool party.

S4·E4 Core

Sherman's Tooth / Voyager Gold Record

Apr 21, 2017 · 24 min

A loose-toothed Sherman sees America's first dentist. Peabody and Sherman fly to the 1970s to find a Golden Record for NASA's Voyager launch.

S4·E5 Core

Gone Comic Gone / Harry Houdini

Apr 21, 2017 · 24 min

Sherman's missing comic book steals focus from a show about the Dewey Decimal System. Harry Houdini learns the art of restraint.

S4·E6 Core

P-Bro / First Canine Police Force

Apr 21, 2017 · 24 min

Agamemnon brings his band of brothers back from ancient Greece. Peabody and Sherman help history's first canine police force catch a gaseous criminal.

S4·E7 Core

Cheerleaders / Mansa Musa

Apr 21, 2017 · 24 min

Sherman's determined to win a high-stakes cheerleading competition. A wealthy emperor in West Africa won't stop making extravagant purchases.

S4·E8 Core

Bring Your Kids To Work Day / Leif Erikson

Apr 21, 2017 · 24 min

Bring Your Kids to Work Day brings chaos into the studio. Famed Viking explorer Leif Erikson offends Odin with his sophisticated tastes.

S4·E9 Mytharc

Orchopti-NOT-ron / Mulan

Apr 21, 2017 · 24 min

Super fan Maria hosts the show when Peabody and Sherman get trapped inside Orchoptitron. Christine's meddling threatens to derail Mulan's destiny.

S4·E10 Core

The Show's The Thing / Peter Cooper

Apr 21, 2017 · 24 min

Famed playwright William Shakespeare refuses to cast Peabody in his dream role. Inventor Peter Cooper injects a little too much life into his gelatin.

S4·E12 Mytharc

Seen It / Edgar Allan Poe

Apr 21, 2017 · 24 min

A nasty heckler pushes Peabody and Sherman out of their comfort zones. A lovestruck Edgar Allan Poe can't seem to find his dark side.

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