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Finn and his friends journey to the last refuge called Founders Island.
Finn, Jake, Kara, and BMO are flying in the transporter on their way to Founders Island; in their way, Kara shows Finn his mother's thoughts and a hologram of her, which Finn admires as Kara explains some details. After they arrive, Finn looks around at the many humans. Jake goes around calling Minerva, and he asks a nearby citizen, who thinks Jake dressed like a dog, her whereabouts, only to know that Minerva is "always there to help" which everyone knows. Then a little girl comes by and asks Finn if she can pet his dog's (Jake's) tummy, and Jake responds and says she doesn't have to as, which surprises her that Jake's a talking dog. Soon, Jake is surrounded by excited citizens.
Kara then sees Minerva, helping a tripped citizen. Finn walks over to her, trying to ask her carefully, only to get a indifferent, robotic reply, confusing him. Meanwhile, the crowd is surrounding Jake, with Jake surprised that none of them have seen a talking dog before and he crowd enjoying Jake's humor and laugh at the funny things he says. While Kara tries to tell Jake not to distracted, she trips over a battery and falls onto the ground; from a distance, she sees her old friend Frieda for the first time in years. She then runs off to speak to her. Jake tries to wrap it up with the crowd, and then stretches into a rocket ship and makes farting sounds. Many of the citizens begin to freak out in fright, thinking Jake is a mutant. Jake than stretches into a regular dog shape to calm them down. The people are still scared and begin to call for Minerva.
At this time, Finn is still with Minerva, who now hears the calls and walks over to the crowd. Jake sees her, thinking that he just finds Minerva, yet several identical Minervas walk up as well. One of the Minervas reveals an injector inside her finger and attempts to sedate him. Jake steps back and explains his nature, only to be tranquilized by a Minerva behind him; Finn tries to stop her and has the same fate with an unfinished sentence.
The scene cuts to a large tower. Inside of it, Finn and Jake appear in some sort of prison cell that they can't escape. Finn than wakes up saying "...son." and finds an implant on the forehead of Jake and him. Right after, several Minerva clones walk into the cell. One of them paralyzes Finn and Jake with the implant, and she collects a blood sample of Finn. After a quick analysis, it confirms that he is "Finn Mertens." At this moment, all of the Minerva bots from all over the island are shocked about this. One of them then leaves the cell, asking Finn and Jake to follow. Meanwhile, Kara and BMO saw Frieda walk into a toy store. Kara then looks through the windows and questions if she could be Frieda's friend again after she hurt her years back.
Back in the tower where Finn and Jake are, the Minerva bot is leading them to a giant room of many underwater computers. She walks across the water and Jake shrinks himself to small and climbed on top of Finn's head as he goes swimming through. At the center, a screen activates and Minerva appears. Minerva, at first confused, soon realize her long-lost son in right before her, and she babbles happily before Finn asks what's going on to her. She explains that by the time Finn and Martin disappeared, Minerva was very devastated and fragile. She asked Dr. Gross to find them, who sent her most powerful seeker (Kara) to bring them back, but Kara is gone too. Years later during Minerva's retreatment, Dr. Gross accidentally released a terrible virus in her lab, which caused a huge plague causing 62% of the population died and almost eradicated all helpers. Minerva was in no condition to do her job so she uploaded her brain map, making her an artificial intelligence ever since and so she can help by controlling hundreds of helper robots. Ever since, she protected all of her people to revive from the crisis.
After explaining, Minerva believes that they are all protected can safely live here, but as Finn says that he doesn't necessarily need to, a Minerva-bot hugs him more tight as Minerva adds "for the rest of your life."
- Susan Strong (Kara)
- Frieda (no lines)
- Helpers (flashback)
- Dr. Gross (flashback)
- Hybrid Animals (flashback)
- "Bot or Not?"
- In some international releases of the episode, the scene where the dog's ears fall off was replaced with them flying away.
- The Minerva Bots' hand weapons are similar to the Autons in Doctor Who.
- The Minerva Bots walk through the prison cell force field similar to the Borg from Star Trek.
- One of the Minerva bots walking on water is similar to Lion and Opal from Steven Universe.
- The history of the people of the islands resembles the history helghast from the game Killzone.
- The policy of people in relation to mutants is similar to the Fourth Reich from Dmitry Glukhovsky's novel Metro 2033.
- Dr. Minerva on screen after she uploaded her brain to the web is similar to Dr. Arnim Zola was diagnosed with a terminal illness in 1972 and transferred his brain to two hundred 1970s-era computers in a secret bunker at Camp Lehigh from Captain America: The Winter Soldier.
- When many of the Humans on Founders Island freak out when Jake uses his stretchy powers they assume he is a mutant. Jake claims he is magic, but does seem to question that. He believed in "The Witch's Garden" that he got his powers from a mud puddle. It was also revealed in "Joshua and Margaret Investigations" that Jake is unaware of his origins.
- Minerva mentions the virus that almost wiped the human race in the islands was the most catastrophic event for humanity in 300 years. This event 300 years ago could be Humans' previous disastrous attempt to leave the islands mentioned in "Hide and Seek."
- Finn did not tell Minerva that he has met his biological father, Martin, yet Minerva assumes that Finn knows who he is. However, this might be justified, as Minerva had no way to know Martin left Finn after the two disappeared.
- This episode was released for digital download and DVD on January 24, 2017.
- Hynden Walch is credited for voicing Princess Bubblegum, even though PB didn't appear in the episode, and Walch only provided additional voices.
- When Finn and Jake are in the prison cell, there are some scenes with Finn's left arm, instead of right one, appearing as the mechanical arm.