Afraid to watch horror movies with his friend, Pod, Squish the amoeba feels better after learning that even comic book superheroes get scared sometimes.

Fifth-grader and Monster Squadder Lindsey's photography skills come in handy when an unidentified flying object appears in Riddle, and metal objects begin to disappear.

In Riddle, where strange things often happen, fifth-grader Jesse Ranger and three classmates, all big fans of B-grade monster movies made by a reclusive local director, are recruited to round up the creatures that are coming to life when original films are shown.