Mr. Big's Big Plan is an episode that premiered in Season 1 of WordGirl. It is part 1 of the tenth episode and premiered with Vocab Bee. Mr. Big's Big Plan debuted on February 22, 2008.
Mr. Big and Leslie are back, and this time, Mr. Big is running for mayor. Mr. Big says he's reformed, and makes false promises to the townspeople in order to steal the election. WordGirl must find out his evil plan and save the city before Mr. Big wins the election and takes over.