Brain Switch / Koikawa Harumachi
Everything's off-kilter when Peabody and Sherman attempt to swap brains. Comic book inventor Koikawa Harumachi unleashes a literary monster.
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More from this season
S3 E1
The Wrath of Hughes
Peabody and Sherman confront bizarro versions of themselves after entering an alternate reality that's ruled by a cyborg Mrs. Hughes.
S3 E2
Jump the Whale Shark / Frédéric Bartholdi
A beachy-keen Sherman squashes a rival by jumping the shark. Famed sculptor Frédéric Bartholdi learns to stand up to his overbearing mother.
S3 E3
Pea Dummy / Mary Anning
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.
S3 E4
Climate Control / Ziryab
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.