The Fly II is a 1989 American science fiction horror film directed by Chris Walas. The film stars Eric Stoltz and Daphne Zuniga, and is a sequel to the 1986 film The Fly, itself a remake of the 1958 film of the same name. Stoltz's character in this sequel is the adult son of Veronica Quaife and Seth Brundle, a scientist who became a human-fly hybrid as a result of an experiment gone awry, played by Jeff Goldblum in the 1986 remake. With the exception of stock footage of Goldblum from the first film, John Getz was the only actor to reprise his role, with another actress filling the Geena Davis role as Quaife in the opening birth scene.
Seth Brundle was a renowned scientist whose warped experiments with teleportation transformed him into a man/fly hybrid called BrundleFly. A few months after the BrundleFly insect met its demise by his lover's, Veronica, shotgun, she dies while giving birth to their son, Martin. Seth's corrupt employer, Bartok, adopts Martin, only so Martin can solve the new problems that the still-functioning TelePods present and to use him as a science project because of the dormant insect genes. Martin is now fully grown, even though he is five, and the fly genes begin to awaken and make him just like dear, dead dad. With the help of his girlfriend, Beth, they go to wherever they can find a possible cure before Bartok finds them and brings them back, but not before Martin finishes his transformation into MartinFly, the deadliest of the BrundleFly species.