In ‘The Philadelphia Experiment,’ a covert government initiative seeks to resurrect the World War II-era “Philadelphia Experiment,” an endeavor aimed at developing a cloaking technology to make naval vessels vanish from sight. Upon achieving success, the experiment inadvertently returns the original ship, the Eldridge, which vanished during the initial trial in 1943, unleashing chaos and devastation in the modern era. The responsibility to halt this catastrophe falls on the shoulders of Lea, the only survivor from the original experiment, and his granddaughter, Ullerup.