Philadelphia Experiment II

Philadelphia Experiment II

Year: 1993

Runtime: 97 mins

Language: English

Director: Stephen Cornwell

AdventureScience FictionAction

Several years after the original experiment, survivor David Herdeg and his wife Allison, whom he rescued in 1984, are raising their child when David awakens from a painful sleep to a drastically altered reality. In this timeline Germany won World War II, and America is preparing to celebrate fifty years under Nazi rule.

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Philadelphia Experiment II (1993) – Full Plot Summary & Ending Explained

Read the complete plot breakdown of Philadelphia Experiment II (1993), including all key story events, major twists, and the ending explained in detail. Discover what really happened—and what it all means.

Nine years after the Philadelphia Experiment, David Herdeg has carved out a quiet life in modern California. He is a widower who weathered the loss of Allison and built a family around their son, Benjamin Herdeg. The pair face a steady grind: a faltering business, Ben’s slipping school attendance, and mounting pressure from banks threatening foreclosure. Despite the strain, David refuses a lifeline from Professor Longstreet, the original director of the Philadelphia Experiment, who urges him to rejoin the Navy. What weighs heaviest on David, though, are the painful episodes that Longstreet brushes off as stress, a diagnosis that does not begin to explain the trouble surging through his body.

Meanwhile, in a parallel strand of the same science, Dr. William Mailer, portrayed by Gerrit Graham, using the Experiment’s technology in secret, engineers a bold plan of his own. His aim is to teleport a bomber into enemy airspace for a sudden strike and then recall it before reaction sets in. He demonstrates a proof of concept by beaming a model aircraft across a room, and his work captures attention in a world hungry for tactical breakthroughs. Longstreet, already wary of the risks, convinces a cautious panel to withhold further backing. He also supplied Mailer with the equipment, but his condition remains strict: the device is strictly for testing. Mailer’s experiments, however, begin to ripple back into David’s life, triggering the very episodes Longstreet dismissed as stress.

As pressure mounts, David tries to pull away from California’s grip, hoping to remove himself from a project that has long since left him unsettled. In a desperate bid to prove his capabilities, Mailer uses the technology to teleport an F-117 Nighthawk, a plane that should reach its destination and return—but this time it does not, and the world as David knows it seems to fracture. He collapses in pain, a seizure tearing through him, and the surrounding environment shudders. The sequence of events costs him dearly: his son Ben vanishes, and David finds himself thrust into a changed 1993, fleeing from a heavily armed military unit that hunts him for reasons he cannot fathom. He is rescued by Jess, a bold leader who commands an underground resistance. She reveals a startling truth: in this altered timeline, Nazi Germany has won World War II and is preparing to finalize half a century of rule over the United States.

The key hinge of this new reality is a weapon the world once believed was fallen to history: the Phoenix. In this timeline, the Phoenix enabled a devastating strike—dropping atomic bombs on Washington, D.C., and other East Coast targets—and Germany’s victory followed a rapid surrender by the Allies. The device’s arrival and the destruction of a crucial time-bending mechanism had allowed Friedrich Mahler, who claims credit for the invention, to be ridiculed for his failure to reproduce it. In truth, the Phoenix was the F-117 that Mailer had teleported through time, loaded with a nuclear payload and sent to Ramstein. The time-travel trick that allowed the launch had unintended consequences, and Mahler’s ascent to glory was hollow.

With the resistance under pressure, Longstreet seeks out David as the only one who can set history straight. David’s blood, a product of his prior time journeys, holds a unique property that could power a return to the original timeline. The plan is for David to slip back, correct the sequence, and prevent the Phoenix from ever leaving its hangar. Mailer, who has become a Nazi administrator in this bleak future, discovers the resistance’s aims and intensifies his own pursuit of the time machine. The pursuit culminates in a siege on Mailer’s base as the rebels scramble to reach the device, while David fights through captivity, draws a vial of blood, and escapes to race back through time—with Mailer not far behind.

The climactic trip lands David and Mailer in 1943, on the night before the Phoenix is scheduled to depart. Mailer’s encounter with his own father poses a paradox that tests the limits of time and truth: the elder Mailer declares that he does not have a son. David presses forward, determined to halt the mission and destroy the aircraft at its source. In the ensuing struggle, he succeeds in crippling the Phoenix, but the escape through the portal is not simple. Mailer shoots, wounding David, who nevertheless draws his weapon and turns the tables on Mahler, killing him and triggering a paradox that unravels Mailer’s hold on history. With the paradox resolved, David crawls back into the portal and returns to a corrected 1993, where the world has been restored to its rightful course.

Back in the present timeline, David meets his son Ben again at a Little League game, surprised to find that the past has realigned in his favor. He discovers, with a mix of relief and wonder, that Jess—who once aided the resistance—has become the mother of one of Ben’s teammates, a sign that the fabric of his life has been re-woven by the choices he made and the dangers he faced. The journey reinforces the fragile balance between two worlds and the cost of altering time, but it also offers the chance for healing: a father’s return to his son, a family’s reconciliation, and the quiet knowledge that courage can bend the river of history back toward home.

  • Hank the Controller and other operational figures underscore the danger and structure of the control rooms that anchor the two timelines, while Vortex Technician and Gate PK remind us that even the smallest roles can influence a world in peril.

  • The narrative weaves through a cast of distinct figures—Logan, Jess, Professor Longstreet, and General—to paint a broad portrait of science, power, and resistance.

  • The film’s core themes—time travel’s double-edged sword, the resilience of a broken family, and the moral weight of altering history—are kept in sharp focus through a carefully paced arc that maintains a steady, neutral lens while gradually expanding the scope of its consequences.

This retelling preserves the original’s core events and emotional stakes, while presenting them in a readable, coherent flow that honors the cast’s contributions and the story’s intricate timeline.

Last Updated: October 07, 2025 at 08:29

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