A malfunctioning machine strands Peabody, Sherman and their whole audience on the moon. Catherine the Great invents the world's first roller coaster.

Sherman and Boogaz pair up as egg parents for a school project. Engineer George Stephenson needs Peabody and Sherman's help stopping a runaway train.

Ringmaster Peabody and temporarily tattooed Sherman host a circus-themed show. Sweet Tune, Sherman and Peabody pursue a band of thieving monkeys.

Sherman is determined to set a world record. When Easter Island's famous statues come to life, it's clear that King Hotu Matu'a has something to hide.

Sleepy Sherman struggles to stay awake during the show. Superstitious sumo wrestler Akashi Shiganosuke decides to become a Kabuki dancer instead.

Orchoptitron is depressed because his girlfriend dumped him. John Harrington makes the 1500s smell a lot better when he invents the toilet.

Mr. Hobson accidentally eats a shrunken Sherman. Teenage Annie Oakley shows off her sharpshooting skills in the Old West.

Pudgy Peabody can't stop eating. Spanish conquistador Ponce de León is looking for the Fountain of Youth, but he has a very short attention span.

A sophisticated spy shares his cool secret agent gadgets with Peabody. Alexander Cartwright invents baseball, but he keeps changing the rules!

Sherman swaps places with an 11-year-old emperor from ancient China. Angry ghosts keep Charles Dickens from finishing his novel "A Christmas Carol."

Archaeologist Sherman digs up a secret from Peabody's past. Sherman and Peabody can't stop snacking on George Crum's tasty invention: the potato chip!

Nostradamus delivers a cryptic riddle on Family Fun Night. In 1805, Sacagawea helps Peabody and Sherman track down explorers Lewis and Clark.

Cleopatra, Mark Twain and other disgruntled guests stage a protest during the show's finale. Aristophanes's jokes flop when his comic muse flees.

Peabody and Sherman confront bizarro versions of themselves after entering an alternate reality that's ruled by a cyborg Mrs. Hughes.

A beachy-keen Sherman squashes a rival by jumping the shark. Famed sculptor Frédéric Bartholdi learns to stand up to his overbearing mother.

After scoring surprisingly low on an IQ test, a time-traveling Peabody meets his match in brainy Mary Anning, the world's first female paleontologist.

Our hot-and-cold co-hosts come to blows over the temperature inside the studio. Distracted designer Ziryab unveils his vision for a royal wedding.

Everything's off-kilter when Peabody and Sherman attempt to swap brains. Comic book inventor Koikawa Harumachi unleashes a literary monster.

Sherman gains unexplained superpowers when a meteor hits the penthouse. Messy math whiz Ada Lovelace writes the code for the world's first computer.

A mouse on the loose in the penthouse makes Peabody's skin crawl. The inventor of the world's first submarine sets out to find a sea monster.

Peabody vows to teach Sherman that honesty is the best policy. Pioneering private eye Allan Pinkerton searches for a stash of stolen diamonds.

A visit from Johnny Appleseed turns the studio into a woodsy wonderland. Self-absorbed pharaoh Queen Hatshepsut opens up the world’s first zoo.

Peabody and Sherman help Hobson cross items off his bucket list. Explorer Robert Peary's historic North Pole trek takes a detour to Santa's workshop.

Sherman hosts a telethon to help his school -- and win a prize. A time-traveling Peabody steps in to prove opera star Enrico Caruso's innocence.

A spook-tacular show turns Peabody and Sherman into monsters. The inventor of the world's first automobile is also one of the world's worst drivers.

The Guapo Brothers' rival talk show steals Peabody and Sherman's audience. Mountaineering maven Lucy Walker makes history on the Matterhorn.

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.

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

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.

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.

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

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

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 brings chaos into the studio. Famed Viking explorer Leif Erikson offends Odin with his sophisticated tastes.

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

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

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.

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 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.