Grandma Got Run Over by a Reindeer

Santa's reindeer ran over Grandma because she had accidentally been given reindeer-nip, a special treats that makes reindeer hyperactive. Cousin Mel had sabotaged Grandma's famous fruitcake by adding this ingredient in an attempt to ruin Christmas sales and force the store sale. When the reindeer encountered the scent of the reindeer-nip on Grandma as she left the store on Christmas Eve, they became irrational and knocked her down.

Earlier, Mel sabotaged the fruitcake in Grandma's kitchen, adding an ingredient that would cause the reindeer to act erratically.

Reindeer-nip is a special treat that makes reindeer hyperactive and irrational. Cousin Mel secretly added it to Grandma's fruitcake, hoping the ruined dessert would hurt holiday sales and pressure the family to sell their store. When Grandma walked outside on Christmas Eve carrying the contaminated fruitcake, the reindeer smelled the reindeer-nip, went into a frenzy, and knocked her over.

Mel's sabotage of the fruitcake in the kitchen was shown early in the film as part of her scheme to take over the store.

After the reindeer accident left Grandma severely injured, Santa took her to the North Pole for medical treatment. The accident triggered amnesia, causing Grandma to lose most of her memories, including her own identity. Santa kept her at the North Pole hoping treatment would restore her memory, but the amnesia persisted until she was reunited with her family.

The night of the accident, the family witnessed the reindeer incident and found Grandma missing the next morning with only an imprint in the snow.

Cousin Mel hid the letter because it contained information that could expose her involvement in the accident and her ongoing schemes to take over the store. After finding Grandma at the accident scene, Mel discovered the reindeer-nip in the fruitcake and realized the sabotage had backfired. Rather than reveal the truth, she kept the letter hidden to protect herself and continue her plot to force the store sale.

Mel was shown searching through Grandma's belongings immediately after the accident, finding something she quickly concealed.

Grandma's memory was restored when she tasted her own fruitcake again. After being rescued from the cabin where Mel had hidden her, Jake and the family gave Grandma some of her traditional fruitcake. The familiar taste triggered the return of her memories, allowing her to recall everything that had happened, including Mel's sabotage and the truth about the accident.

Earlier, the fruitcake was established as Grandma's signature recipe, deeply tied to her identity and memories.

Mel kidnapped Grandma and kept her in the secluded cabin to prevent her from revealing the truth about the accident and Mel's involvement in the fruitcake sabotage. With Grandma out of the way, Mel could continue her scheme to force the store sale through power of attorney and convince the family that Santa had kidnapped Grandma. This would also stop Grandma from contesting the sale and exposing Mel's crimes.

After Santa and Grandma returned to Cityville, Mel and her attorney I.M. Slime immediately whisked Grandma away from the truth.

Mel wanted power of attorney so she could legally sell Grandma's store without the family's consent. With Grandpa tricked into signing over control, Mel could proceed with the sale to Austin Bucks' corporation, presumably taking a cut or position in the new business. This was part of her larger scheme to profit from the family property while everyone was distracted by Grandma's disappearance.

Nine months after Grandma vanished, Mel's plan intensified as the store's business declined and the family's hope faded.

Austin Bucks represented a Christmas conglomerate that wanted to modernize how the holiday was celebrated in Cityville. Grandma's small general store was the last independent shop in town, and its old-fashioned approach clashed with Bucks' corporate vision. He sought to buy and franchise the store as part of his expansion, offering the family a deal that would let them keep the business name but lose control.

The film opens with the contrast between Grandma's traditional store and Bucks' slick, corporate Christmas operation.

At the end of the movie, Mel was run over by Santa's reindeer again, this time after accidentally exposing herself to reindeer-nip from her own sabotaged fruitcake. She was rescued by Jake and Grandpa, and along with her attorney I.M. Slime, she was arrested for obstructing justice and nearly ruining Christmas. The film ends with her recovering while the family celebrates the holiday spirit.

The reindeer-nip remained in the fruitcake that Mel had originally sabotaged, waiting for an opportunity to affect whoever encountered it.

Jake believed in Santa because his grandparents had always maintained their faith in Santa Claus, and their conviction inspired him to keep believing. Even as his parents, sister, and the town grew skeptical after Grandma's disappearance, Jake's determination to find the truth drove him to email Santa directly, leading Quincy the elf to respond and ultimately reveal what had really happened to Grandma.

Jake and his grandparents were introduced as the few remaining believers in Santa in Cityville.