Flesh Gordon is a parody of the classic science fiction adventure film Flash Gordon, but with a heavy emphasis on sexual humor, innuendos and graphic nudity. The film opens with Emperor Wang, ruler of the planet Porno, unleashing his deadly "Sex Ray" on Earth, causing widespread chaos and carnal behavior. Meanwhile, Flesh Gordon, a handsome and muscular football player, is busy getting it on with his voluptuous girlfriend Dale Ardor when the Sex Ray hits, turning them both into lustful beasts.
As the situation on Earth grows more dire, Flesh and Dale team up with the eccentric Professor Flexi-Jerkoff and embark on a journey to Porno to confront Emperor Wang and put an end to his evil plan. Along the way, they encounter a wide variety of bizarre and sexually deviant alien creatures, including the cunning Queen Frigid of the ice planet, the sensual Amazonian women of the planet Sexaroid, and the monstrous Pig Men of the planet Zork.
Through it all, Flesh and his companions must rely on their wits, their bravery and their sexual prowess to survive the perils of space and save humanity from Wang's depravity. The film features a mix of live-action and hand-drawn animation, with copious amounts of nudity, sexual acts and raunchy humor. It has garnered a cult following over the years for its unapologetic embrace of off-color comedy and boundary-pushing sexual content.