The Gymnastics Mystery: It's summer at the shore, but someone wants to put a stop to all the fun! Who's ruining the rides at the amusement pier? The Aldens are on the case... The Poison Frog Mystery: A backpack full of jewels has fallen out of a plane! Was it just an accident? The Boxcar Children need to find out what happened! The Mystery of the Empty Safe: Can visiting a gravesite bring bad luck? The Boxcar Children explore the local cemetery's secrets to discover the truth behind an old legend!