Everything You Know Is Wrong

Cox starts the record with a tinny-sounding recording of Richard Strauss' Also Sprach Zarathustra. After a brief introduction plugging his records, he gives a reverberating montage of his latest revelations, such as "Dogs flew spaceships", "Men and women are the same sex", and "Your brain is not the boss"; concluding with "Everything you know is wrong!"

Cox interviews Heater County, California Sheriff Luger Axehandle (Ossman), who claims to have seen a dog- or wolf-like alien digging up a grave in Curio, Arizona. Cox follows this with an interview of Lem Ashhauler (Proctor), editor of the Hellmouth-Heater Democrat newspaper, who reads an archived 1897 story identifying the grave's occupant as a strange visitor who choked to death on a piece of cheese.

Next, Cox plays an educational film, Ben Franklin: Hero or Hophead?, which alleges that the United States Founding Fathers Benjamin Franklin (Bergman), Samuel Adams (Proctor), and Thomas Jefferson (Austin) planned the American Revolution while smoking hemp.

Cox follows this with a purported wire recording of an old-time medicine show produced by "Doctor Firesign's Antique Theatre". The show starts with Act One of the play Orphan's Tears (parodying Uncle Tom's Cabin), in which Field Marshal Thomas Legree Quadroon (Bergman), a freed "professional slave", returns from the Civil War as a carpetbagger to terrorize his former owners by demanding they pay a "carpet tax" and telling them it's their turn to be the slaves. At intermission, the charlatan Professor Archer (Ossman) and his assistant Bowman (Bergman) prepare a potion from cactus juice, "Chief Dancing Knockout's Pyramid Pushover Paste", and "Don Brouhaha's Inca Hell-Oil Tonic". Cox then segues into his narration of a dramatization of Archer and Bowman ingesting their potion, turning into crows, and flying away to encounter Don Brouhaha (Proctor), an "ancient cockroach in a sombrero", actually a Native American shaman, a lampoon of Carlos Castaneda's character Don Juan Matus.

Cox's recording session is then interrupted by a phone call from psychic Nino Savant (Proctor), who tells him the aliens want to contact Cox. Savant moves from the phone to the TV, so Cox can listen to his answering machine. The only messages are from his bank, the trailer park manager Art Wholeflaffer (Ossman), and a teenage stalker fan named Gary (Bergman).

After Savant leaves the TV, it stays on and we hear the Channel 6 television news report, anchored by the "Where It's At" team of Harold Hiphugger (Ossman) and Ray Hamberger (Proctor) (pronounced "am-bur-ZHER", but Cox later addresses him as "Mr. Hamburger"). They lampoon the "happy talk" television news format which came into fashion about this time. Cox leaves his trailer to talk to Wholeflaffer, but leaves the TV on.

After a commercial for "Bear Wiz" beer, a quick weather report, and another commercial for "Magog Brothers Atlantis Carpet Reclaimers", who are stuck with a warehouse full of inventory damaged by the recent collision of a comet (inspired by the less-than-spectacular 1973 appearance of comet Kohoutek), cynical reporter Pat Hat (Bergman, a lampoon of Howard Cosell) interviews "daredemon" Reebus Caneebus (Austin), who plans to jump into the deep hole left in the desert by the comet (a lampoon of Evel Knievel's jump of Snake River Canyon).

Side 1 ends with Cox's voice-over teasing his "most startling new revelation" on side 2.

This starts with aliens apparently revealing themselves and demanding the surrender of Earth, until Cox angrily stops the record, declaring he, too, "was taken in by clever fakes like this." As proof that aliens have landed on Earth, he plays an episode of the travel show The Golden Hind, a parody of the 1950s-60s TV series The Golden Voyage, hosted by Bob Hind (Austin, parody of travelogue film producer Jack Douglas).[3][4][5] Hind interviews Buzz and Bunny Crumbhunger (Bergman and Proctor), a married couple who present a home movie of their abduction, murder and resurrection by aliens.

Cox then presents an "official stolen government training film" of "the secret plan to deal with an alien uprising", narrated by Air Force General Curtis Goatheart (Proctor, a lampoon of Curtis LeMay). The film contains an enactment of a general (Ossman) telling his wife (Austin) and two of his officers (Proctor and Bergman) at breakfast that "two flying saucers [eggs] have just landed on my plate." Though they think he is insane, he takes command and "bombs aliens back to stone age".

The Crumbhungers happen to live in the trailer space next to Cox, and Wholeflaffer has shared his suspicions of them. Cox enlists him to spy on a party they are hosting, but this plan goes awry when the Crumbhungers and their alien friends give Wholeflaffer a drink containing blue moss with hallucinogenic effects, and abduct him by driving their motor home away, headed for the comet hole in Curio. Just then, Gary and his friends drop in on Cox, who tells them to hitch their "Heavenly Bus" up to his trailer and follow the Crumbhungers. Just before leaving, Cox introduces Nino Savant's "Psychic Minute", a lecture on the subject of holes broadcast by "sending directly from his mind to yours." Nino mentions the comet hole in the desert, saying it leads to "the Sun at the center of the Earth".

This segues into Channel 6's continuing coverage of Caneebus's jump and its aftermath, anchored by Hiphugger and Hamberger. A videotape of the morning's jump shows Caneebus finding the hole is only 60 feet deep and contains a golden staircase leading to the Sun. When he decides not to return, Pat Hat jumps in after him. Live coverage then resumes, as the estimated 500,000 to one million spectators have formed a literal parade following Caneebus into the hole, culminating with "the former President's float" (Austin's imitation of Richard Nixon, who resigned two months before the album's release.[6]) Finally, no one but the newsmen and Cox are left, and they ask Cox to keep the camera pointed at them as they enter the hole. Cox asks them to tell Wholeflaffer to come back if they see him, but they are oblivious to this request.

At last the aliens appear, happening to sound just like the "clever fake" on Cox's earlier record, and flying a spaceship that Cox describes as looking "like a big fried egg." Finding no one but Cox, the aliens decide to leave for another millennium. Cox is left alone to muse: "Seekers...it looks like this is the end. Or is it only the begin–?" A coyote howls in the distance, and Cox concludes, "No, it's the end."