On Terraport Station ULC-53, in the year 2036, an android named Max views a video sex manual until he is interrupted by Dr. Daniel via intercom. Max claims that he is doing research about Earth in the twentieth century. Max overhears a conversation between Dr. Daniel and the station’s owner, Terracorp, ordering the doctor to cease further research on their female android project, Cassandra I. Just then, Max receives a distress signal from the spaceship Neptune requesting permission to dock and make repairs. Meanwhile, all five Neptune crew members are killed in a shootout with three escaped prisoners, Margaret “Maggie” Kalliti, Orlando Mendes, and Gunther Keller. When the ship docks, Max assumes the three prisoners are the crew of the Neptune. Max informs them that he and Dr. Daniel are the only ones aboard the space station, and asks that they surrender their weapons. In the guest quarters, Mendes insists that he and Maggie share a room, and while Max shows Keller to his lodgings, the escaped convict notes Max’s physical awkwardness. Later, Max uses male and female anatomical models to fantasize about Maggie. In the morning, Keller plays solitaire and teases Maggie about her intimate encounter with Mendes. In the space station’s greenhouse, Max informs Dr. Daniel about their guests and the doctor is livid, reminding Max that he is not to make decisions on his own. Meanwhile, Mendes is eager to fix the Neptune and flee before the authorities realize it is missing. However, Keller alerts him to the station’s Terracorp logo, informing him that the company is notorious for doing “off-planet” research and activities that are illegal on Earth. Arriving at the scene, Dr. Daniel instructs Keller and Mendes to leave the space station immediately. However, he changes his mind when he sees Maggie. The doctor orders Max to help the visitors with anything they need, then discreetly asks the android to arrange an assignation with Maggie in the greenhouse. Alone, Keller informs Mendes that Max is a robot and that Terracorp is responsible for the “Robots of Munich” uprising, in which androids at a factory killed the male workers and raped the females. In his lab, Dr. Daniel disobeys his orders from Terracorp and continues to work on Cassandra while observing Keller and Mendes on a video monitor and spying on Maggie as she emerges from a shower. Max invites Maggie to lunch with Dr. Daniel, but she is reluctant. Keller urges her to go so she can get information from the doctor. Later, Dr. Daniel works on the female android called Cassandra. Max overhears the doctor dictate into his audio log that Max is showing signs of the “Munich Syndrome,” and once Cassandra is operational, Max will be obsolete and must be terminated. As Mendes and Keller repair the Neptune, Maggie reports to the garden for lunch with Dr. Daniel. He proposes that Maggie allow him to connect her to the female android, Cassandra, and to stimulate her sexually to activate the robot. Maggie refuses and the doctor becomes upset. Max observes them from his video monitor, then watches the film Metropolis. Max receives a radio signal from the Terrapol police ship Minos informing him that Mendes, Keller, and Maggie are dangerous fugitives. However, Max claims no one fitting their descriptions is on board. He arms the space station’s defenses, but the police insist on investigating, anyway. When the Minos attempts to dock, Max blows up the police ship. Meanwhile, Mendes demands that they leave immediately, and when Keller insists the Neptune is not ready, Mendes attacks. The fugitives are surprised when Max reports that he blew up the Minos. He tells them that the police ship was alone, but warns that there is an emergency signal box on the Neptune that should be dismantled. Unaware of the incident, Dr. Daniel continues to work on Cassandra and Max watches the film It’s a Wonderful Life. Maggie visits Max in his room to ask why he blew up the police ship and Max replies that he wants to join the fugitives in their journey to Earth. He wants to visit Chicago, Illinois, and fears being replaced by Cassandra. Although Maggie did not previously believe Dr. Daniel about the female android, she now asks Max to show her the robot. Taking her to the lab, Max repeats his desire to go to Earth and Maggie agrees before seducing him. As Maggie and Max make love, Cassandra is activated by the sexual energy. Max subdues the other robot, but Maggie is horrified to realize that Max is also an android. When Maggie returns to her quarters, Mendes suspects she has been intimate with someone and attacks. Keller intercedes, but Mendes knocks him unconscious, then kills Maggie. As Max packs a suitcase with spare parts for his voyage, he discovers Maggie’s body. Meanwhile, Keller is killed in his attempt to attack Mendes. Dr. Daniel observes the violence from afar on his monitor and locks Mendes in his room. He then swaps out a part of Max’s system that governs morals and orders him to kill Mendes. The android tears through the doors of Mendes’ room and snaps the man’s neck. Meanwhile, a fleet of police space ships approach the station. In the lab, Dr. Daniel reactivates Cassandra, undresses her, and attempts to fondle her, but she stops him. Max returns and restrains Daniel. As he and Cassandra remove the doctor’s head, they reveal that he, too, is an android. Cassandra restores Max’s “moral governor” and says they must go to Earth and join others like them. When the police troopers board the space station, they assume that Max and Cassandra are Dr. Daniel and his assistant, and agree to return them to Earth.