The Great Detective Race: The local radio station is putting on the Great Detective Race, where contestants must solve riddles and search all over Greenfield for clues leading to the grand prize. The Aldens sign up, and soon they're following the riddles' clues all over town.
The Ghost at the Drive-In Movie: The Aldens are visiting a friend who owns a drive-in movie. The children love to eat popcorn in the car and watch movies under the stars...