S01E124: Peabody's Improbable History - P. T. Barnum

Peabody and Sherman travel back to meet the legendary showman P. T. Barnum and witness his famous circus. However, they quickly discover that saboteurs are plotting to ruin the trapeze act and sabotage the entire show. Peabody must step in to outsmart the troublemakers and save Barnum's big performance, ensuring that "The Greatest Show on Earth" goes off without a hitch.