The Mummysons must figure out who is trying to destroy the Freak Street Park, before everyones picnic plans are completely unravelled.
When Freak Street Film Studio takes an interest in the Robotsons homemade robot monster, the family need to stop things getting completely bent out of shape. And the Spysons take on their most challenging undercover operation yet, when the rarest bird in Freak Street goes missing in the middle of the night.
But that is nothing out of the ordinary, right?