|Air Date||November 15, 2019|
|Written by||Ghia Godfree|
Mystery on the Muppet Express
- "The Muppet Express" performed by the Muppet Babies
- "Open Your Mind Up (to Something New)" performed by Mr. Manny
- The episode "Mystery on the Muppet Express" includes the most cameos of guest characters on the series to date, with the song "The Muppet Express" featuring brief, silent appearances of Mr. Statler and Mr. Waldorf, Rizzo, Bunsen, Beaker, Rowlf, Sweetums, Chef, Robin, Phineas T. Cup, as well as Camilla, Priscilla, and Beep.
- The episode also has Summer Penguin assume the role of a P.I. (Penguin Investigator) again, having previously solved a case in the eponymous episode "Summer Penguin P.I."
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Sparkly Star Switcheroo
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Don't Over Duet