While on a school field trip to New Orleans, sixth-grader Catalina Duran becomes wrapped up in a mystery when someone attempts to sabotage their trip and Catalina must uncover the culprit.
When Samantha "Sam" Archer and her friends in the nature club arrive in Yellowstone Park on a school trip, they find that the park superintendent's son may have been kidnapped.
While their sixth-grade class is on a field trip to Everglades National Park, James "Gum" Shoo and his friends find a suspicious park ranger and a gang of poarchers.