In Los Angeles, a colorful assortment of bohemians try to make sense of their intersecting lives. The moody Dark Smith, his bisexual girlfriend, her lesbian lover and their shy gay friend plan on attending the wildest party of the year. But they'll only make it if they can survive the drug trips, suicides, trysts, mutilations and alien abductions that occur as one surreal day unfolds.
A group of men who were clearing brush for the government arrive back in town, claiming that their friend was abducted by aliens. Nobody believes them, and despite a lack of motive and no evidence of foul play, their friends' disappearance is treated as murder.
After a mysterious blackout, a son goes out to investigate and captures footage of actual aliens. When the aliens follow he and his brothers back to their home all hell breaks lose.
A teenage hustler and a young man obsessed with alien abductions cross paths, together discovering a horrible, liberating truth.
In 1957 a fiery object crashes into a mountaintop in the California desert, bringing the threat of disaster to Earth. Out of the flying saucer escapes a murderous creature, the Ghota, bent on destroying all life forms on the planet. A benevolent alien from the spaceship, Urp, inhabits the body of Ted Lewis, an astronomer and with the help of Tammy, a diner waitress, sets out to save mankind.
When an atomic war on Mars destroys the planet's women, it's up to Martian Princess Marcuzan and her right-hand man Dr. Nadir to travel to earth and kidnap women for new breeding stock. Landing in Puerto Rico, they shoot down a NASA space capsule manned by an android. With his electronic brain damaged, the android terrorizes the island while the Martians raid beaches and pool parties
Abby and Rebecca reunite to spread their mother's ashes at the family lake house, and uncover the nefarious object that divided them years earlier.
Atomic scientist/pilot Doug Martin is missing after his plane crashes on an reconnaissance mission after a nuclear test. Miraculously appearing unhurt at the base later, he is given sodium amethol, but authorities are skeptical of his story that he was captured by aliens determined to conquer the Earth with giant monsters and insects. Martin vows to use existing technology to destroy them.
Tommy Kirk leads his fellow Martians to Earth on an interplanetary quest for females. Kirk proves that Martians have impeccable taste when one of his first conquests turns out to be sexy scientist Yvonne Craig.
Tony's father Sam, abducted by aliens three years earlier, returns to earth and seeks out his wife and son, but Rachel has since been living with Joe and the reunion is awkward. Joe doesn't trust Sam, and Rachel can't quite decide what her feelings are for her two men. Sam is not the same as when he left, and he begins affecting Tony in frightening ways.
A novelist's wife and son see him changed by an apparent encounter with aliens in the mountains.