|"I'd rather be dancin' with some babes!"|
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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.
- The time bear that appears as one of Gross's projects also appears in one of Finn's dreams in "Hoots."
- A Farmworld Finn hat can be seen inside the grabber claw game.
- A scientist traveling in a vessel resembling a narwhal could be a reference to Jules Verne.
- Tiffany survived the supposed death he endured in "Dentist" which resulted in losing his arm.
- This episode along with "Reboot" are the finale for the seventh season. They will also air on a Saturday at a new time slot (8:30 PM).
- In Poland and the Netherlands, this episode will be airing on November 8, 2016, before its intended U.S. airing. 
- This episode along with "Reboot" aired in South Africa on October 26, 2016 before its intended U.S. airdate.