Overview: The twins have an idea to get rid of the sprogs once and for all, but things get more complicated than they planned.
Overview: The family goes to a health farm where the twins think monsters are hiding in the lagoon.
Overview: Lucy and Louis think they have found a way to warn people about alien sprogs - music!
Overview: The twins think that a new restaurant is going to turn everyone in the town into zombies.
Overview: The twins think that BB3B is controlling people through the smell from his nappy.
Overview: Chubba is replaced by a mysterious nanny who the twins suspect to be a robot.
Overview: The twins build a time machine to warn their parents of the alien plot.
Overview: The twins discover BB3B's plan to communicate with fellow sprogs in outer space.
Overview: BB finds an interesting discovery in the backyard. Meanwhile, Nana is determined to deliver her love poem to Mr Weinberger.
Overview: A tornado is heading for Sunnyfield and the twins think they know who can help.
Overview: A visit from Uncle Rich leads the twins to uncover a sprog-plot to drain human brains.
Overview: The twins think they have found an alien hatching farm.
Overview: A new theme park has opened in town called Space City.