Philadelphia Experiment II (also known as Philadelphia Experiment 2) is a 1993 American science fiction film. It is the sequel to The Philadelphia Experiment (1984), with an entirely new cast and only two characters returning. It stars Brad Johnson as David Herdeg (the hero from the first film) and Gerrit Graham in a dual role as both the main villain and his father. Plot It is nine years after the events that thrust David Herdeg into 1984, where he met and later married Allison. She has since died, and David is living alone with their son, Benjamin. His business is slowly failing, Ben's school attendance has dropped and the banks are threatening to foreclose on his house; however, he refuses financial help from Professor Longstreet, the original project director, in exchange for rejoining the U.S. Navy. In addition to this, he has also been having painful experiences which Longstreet rationalizes as stress-related hallucinations. Unbeknownst to Herdeg, Longstreet has been doing some research of his own. In a demonstration, engineer William Mailerson of Friedrich Mahler, a Nazi scientist who worked on a project similar to the Philadelphia Experimentuses the technology as a demonstration for a potential teleportation attack-defense strategy. The concept was to beam a bomber into a high-risk area to surprise enemy air defenses, attacking before they could react. To demonstrate, he beams a model aircraft across a room. Despite getting significant interest, Longstreet manages to convince the panel that the technology is too dangerous to use. It is then revealed that Longstreet himself gave Mailer the necessary equipment – on condition that they be used only for test purposes. It is these tests that David is experiencing. Herdeg, furious to learn that Longstreet has lied to him, packs to leave California, hoping to get far enough away from the experiment. Mailer, on the clock to vindicate his work, uses the technology to transmit an F-117 Nighthawk, but the aircraft does not rematerialize. David feels tremendous physical pain as the world around him changes and Ben disappears. David finds himself in a different 1993, on the run from a heavily armed military team. He is rescued by Jess, a member of an underground resistance group, who explains that Nazi Germany won World War II and is about to mark 50 years of Nazi rule over America. Jews, African-Americans, and other ethnic minorities are being sent to concentration camps, while all