When the Aldens go to the Pickering Natural History Museum to assist with the opening of a dinosaur exhibit, their work is hampered by a series of mysterious happenings.

The Aldens visit the shore in New Jersey and help out at an amusement pier that is rumored to be unsafe.

When the Alden children go camping on Blizzard Mountain, a place said to be inhabited by a ghost looking for buried treasure, they begin to think someone or something is trying to scare them off.

When someone steals the money the town has been collecting to help the ducks, Josh and his friends try to find the thief.

When the squirrel Tail comes barreling into the chicken coop ranting about a round, shiny, green, big, scary thing in the yard, Dirt, Sweetie, Poppy, and Sugar investigate this strange object.