After leaving school, Kelly and Arby go to see Jack Thorne. Thorne, a retired applied engineering professor, was hired by Levine to outfit his expedition to Costa Rica by creating and furnishing specialized vehicles and equipment. As Kelly and Arby make their way across the workshop floor they see a Ford Explorer being modified with solar panels and an electric power source as well as two huge trailers connected via an accordion connector. They find Thorne chiding one of the workman for not grounding himself before properly installing a modified ursine repellant system that would run electricity over the outside of the trailer, shocking any animal making contact with the trailer.