Preboot

Synopsis
During an excavation of human artifacts, Finn, Jake and Susan are greeted by a mysterious new stranger who may hold the key to the past.

Plot
In Beautopia, Finn, Jake, and Susan Strong break down a door during high tide that reveals an arcade.

Major Characters

 * Finn
 * Jake
 * Susan Strong
 * Tiffany Oiler
 * Doctor Gross

Minor Characters

 * Hyooman tribe
 * Mash-Up Animals


 * Snail

Mentioned

 * Martin
 * Betty
 * Ice King

Songs

 * A Natural Process

Trivia

 * The time bear that appears as one of Gross's projects also appears in one of Finn's dreams in "Hoots."
 * Jake also shape shifts his hand into a camera, acting as if he's taking a picture with one of the hybrids, as he did in Finn's dream although it was an actual camera.
 * A Farmworld Finn hat can be seen inside the grabber claw game.

Cultural References

 * A scientist traveling in a vessel resembling a narwhal could be a reference to Jules Verne.
 * Doctor Gross's song, "A Natural Process" sounds similar to Gene Wilder's "Pure Imagination" from the 1971 movie, "Willy Wonka and the Chocolate Factory".
 * The "little cutie" discovered in the arcade is one of the monsters from the Sea of Monsters in the Beatles' movie Yellow Submarine.

Episode Connections

 * Tiffany survived the supposed death he endured in "Dentist" which resulted in losing his arm.
 * Dr. Gross makes mention of an island full of human inhabitants, something that the eighth season's "Islands" miniseries will expand upon.
 * The giant electric eel looks similar to dragons.

Production Notes

 * This episode along with "Reboot" are the finale for the seventh season. They aired on a Saturday at a new time slot (8:00 PM).
 * This episode along with "Reboot" aired in South Africa on October 26, and in Italy on November 16, 2016 before its intended U.S. airdate.

Errors

 * While Dr. Gross sings the song "A Natural Process," Tiffany is seen with the gang, but as they enter in the menagerie, he disappears.