Case closed, job well done! Wait… there’s still a problem. Cindy receives a call from none other than Santa Claus himself. He’s glad the culprit was nabbed, but he still never received those letters! And now there’s no time to re-mail them — he’s already sleighing around the world! Cindy has an idea of how Grinch can still deliver the messages on time… if he’s willing to get in the holiday spirit.

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Cindy’s up at the North Pole with no idea that Grinch and Max are getting run out of town by wild gingerbread soldiers. That is, until she sees them flee! She grabs ahold of Max in time to discover that he made a secret recording… that just might prove to the world that Postmaster Glee is the true villain of this year’s Christmas caper!

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With the cuckoo clock riddle partially-solved, Cindy and Max sneak out for a trip to the Whoville Penitentiary. Yes, Whoville has a prison! Can T-Bone, a criminal elf cast out of Santa’s workshop, give Cindy and Max any more clues… or is this a dead end in the investigation?

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Cindy receives a mysterious (and slightly tacky) delivery: A strange, puzzling cuckoo clock. Could it be a clue? Maybe something that helps determine where that missing letter came from — and where the rest are still hidden?! A hidden riddle might hold the answer, if Cindy can just figure out what it’s trying to say…

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Cindy and Max receive a tip that the Whodini Twins like to hang out at WhoCB, a comedy club in downtown Whoville. Maybe they can corner that sneaky duo and figure out the facts! They’re not around, but after a frustrating back-and-forth with two improv comedians, who will definitely become famous and should not get day jobs, Cindy and Max get the address to their magically-hidden home. Now they just have to make Grinch think he found it himself.

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So, the case of Whoville’s missing letters to Santa… isn’t going great. It’s not that Cindy Lou doesn’t believe in the Grinch’s investigative abilities, but she’s pretty sure he could use some help behind-the-scenes. That’s why she’s launching her own underground broadcast, Cindy Lou to the Resc-Who to follow up on clues without Grinch even knowing! Her first priority: Get that Mailman to cooperate!

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Christmas is almost here (ugh)… which means it’s almost OVER! (Yay!) The weather outside is frightful, but you’ll warm right up with a fresh batch of the Grinch’s scalding-hot Holiday hot takes [2:22]! Then, the only A-Lister with better hair than the Grinch, the legendary John Stamos makes it a full house atop Mt. Crumpit [6:40]. And finally, just in time for Christmas Eve, it’s the thrilling conclusion of the missing letters mystery [21:20]. The culprit has been nabbed, but if the mail never made it to Santa, how will he deliver Whoville’s presents? It’s up to the Grinch to save Christmas! Talk about a redemption arc!

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Grinch is over Secret Santa gift exchanges [2:54] — the only gift he wants is NO CHRISTMAS! Then, some very good luck: Fortune Feimster is here [6:40]! There’s a lot of talk of wienerschnitzel, but she didn’t bring a single hot dog for Max. Rude! She leaves just before the Whoville police show up, ready to arrest Grinch for a crime he didn’t commit [16:17]. Ugh, why are the holidays always so stressful?!

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