It's a hot summer's day in Higgledy Piggledy, and Granny is taking Maddie and Triggs to visit Mr Moon's shop for a treat. Maddie is confused because the shop doesn't seem like much fun. But Mr Moon has more than a few surprises and tasty treats up his sleeve!

Maddie and Triggs are having a camping sleepover in their garden, but things take a mysterious twist when Dad discovers someone, or something, has been eating the vegetables in his veggie patch. Maddie and Triggs turn super sleuths and conclude this is the work of a veggie monster!