When Walter pushes Bertie too far by forces him to move boxes of octopi, Dennis and the gang take Bertie under their wing to teach him the art of rebelling.
Dennis is an expert at saying no; No to homework, no to chores, and no to Walter’s evil schemes.
With the help of Beanotown residents, Rubi, JJ and Pieface cheer Bertie to become a rebel.
But when Walter comes to the den looking for his missing underling, Bertie finally snaps and goes on a rampage of ‘NO!’.