Tony and Lucien see a book from Grizzly Mike in the sewers and try to use it to act "brave" and Mari turns into a bad girl and Wendy Winkle joins her gang.
Wayne is customizing his trike. He finds a flame pattern on a barbecue charcoal bag and empties the charcoal into the laundry basket so he can fix the flame pattern on to his trike.
Mr. Winkle is opening a new sluice gate that he has named after his daughter, Wendy. Tony and Lucien are protesting about possible negative effects on the swampland.
When Mr. Cramp takes the twins and Tony to the fair Tony fails to reach the minimum height line to ride the new roller coaster. Despondent, Tony wanders off while Lucien has a disastrous ride and Wayne a brilliant one.
After watching a late night vampire movie, Lucien is skeptical, Tony is terrified and needs to be walked home to next door and Wayne is determined to become a vampire.
Tony and Lucien decide to build a tree house on the vacant lot next to the Cramp house in order to get away from Wayne. Lucien boasts proudly about his tree house in school and Wendy gets jealous.
When Wayne destroys Lucien's fragile 'earth diorama with real animal tears' and then ransacks his room to steal his candy, Lucien decides to turn to the internet for advice.
Wayne discovers the new computer game 'Toxic Mutoid Zombie Squasher' is out and begs his mother to buy it, but she tells him he'll have to save up his own money.