SpongeBob watches a scary movie titled ”Night of the Robot,” in which robots take over the world at night with Gary, and is terrified despite telling Gary that scary movies don’t freak him out. He begins fearing of a robot invasion, even asking Gary if he is a robot, and has a nightmare where robots are taking over the world and are chasing him.
The next day at work, he is very paranoid, and is under the impression that robots are ”everywhere” (one turning out to actually be a trolley full of sea potatoes, and another a red light that was actually the warning light for the fat). He later sees Mr. Krabs ”speaking” in a robot language (actually humming to a song called ”Electric Zoo” on the radio and arguing to find the tune to the song) and wearing batteries in his pocket (his radio broke and he was planning give the batteries to Pearl for her Christmas present), and suspects that he is a robot impostor. SpongeBob calls Mr. Krabs to show Squidward he is a robot. First, he tries to test his sense of humor, so Squidward tells a joke to Mr. Krabs but he does not laugh but tells Squidward that he is not paying him and SpongeBob to do stand-up comedy and leaves.
A moment later, SpongeBob calls him again and tells him Squidward’s father never hugged him. Mr. Krabs thinks it is a little sad but says Squidward can hug himself during his break and leaves, failing the crying test. SpongeBob calls Mr. Krabs again and says that Squidward loves him, but Mr. Krabs tells Squidward to get back to work, failing the love test.
SpongeBob and Squidward then see Mr. Krabs with metal pincers (tongs he was holding an egg with) and glowing red eyes (he accidentally threw salt into his eyes while trying to salt the egg after calling for him and startling him), which ”confirms” SpongeBob’s suspicions. Squidward announces over the microphone that robots are taking over the world, causing the customers to flee the Krusty Krab. SpongeBob tries to call the Navy, but, due to their automated phone service, thinks the robots have already taken it over. Mr. Krabs is relieved that his eyes aren’t hurting anymore and walks back to his office without realizing that there aren’t any customers in the Krusty Krab. Squidward then asks what the people did in the movie. SpongeBob says that they got poop or collected information from the robot after learning how to torture, and the two collect some tools for the investigation.
After collecting enough tools, SpongeBob and Squidward go into Mr. Krabs’ office, send Mr. Krabs into a panic, and then tie Mr. Krabs up, accusing him of being a robot and interrogating him on the location of the ”real” Mr. Krabs. When he gives them no answers and becomes annoyed and angered, they still think he is a robot and begin interrogating his machines, which include a blender, a toaster, a food processor, and a coffee maker.
After they destroy them, this greatly upsets Mr. Krabs, as the machines cost him money. When they come to the cash register, Mr. Krabs cries for it, which robots are incapable of doing, revealing that he is not a robot. He also mentions laughing with it and loving it. Squidward then asks SpongeBob how the movie ended. SpongeBob reveals the end of the movie, in which the robots were all in the main character’s imagination. Realizing his mistake, SpongeBob quickly runs off, declaring it’s time to feed Gary, leaving Squidward to take the heat from a very angry Mr. Krabs growling and then yelling ”Squidward!” while it shows the front of the Krusty Krab shaking, due to Mr. Krabs shouting at the top of his lungs.