A bungled attempt at a stunt leads to Dennis accidentally becoming an internet star and Beanotown celebrity! But his moment of fame is short and Dennis is soon replaced by Walter's cat, who can play the piano. Dennis has to stage the best stunt yet to gain back his audience.
Series 1: 38. Bertie's Backbone
Dennis and the gang train Bertie in the art of standing up to people so he can rebel against Walter's bossiness - but they train him too well and he becomes a dangerous reb ...