The Mr. Peabody &amp; Sherman Show : Season 4

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.

Return of the Guapos Part 3

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

Magic Hiccups / Gaius Maecenas

4.0/5

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.

Sherman's Tooth / Voyager Gold Record

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.

Gone Comic Gone / Harry Houdini

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

P-Bro / First Canine Police Force

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

Cheerleaders / Mansa Musa

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

Bring Your Kids To Work Day / Leif Erikson

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

Orchopti-NOT-ron / Mulan

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

The Show's The Thing / Peter Cooper

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

Peabody's Delivery / Joe vs. the Peabody and Sherman

It's a wild day in the studio when an angry koala eats a local guide. Peabody meets the sausage maker who inspired him to invent the WABAC.

Seen It / Edgar Allan Poe

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.

The Perfect Perfect Show Again Again / Abraham Lincoln

The neighbors lobby to perform live on the last show of the season. Abraham Lincoln needs to get to Gettysburg ... but he doesn't know the address.