The More You Moe, The Moe You Know (Part I)

Synopsis
Moe visits the tree house with a special birthday surprise for BMO. While BMO's mission stands on the brink of disaster, Finn and Jake host a strange guest.

Plot
Due to Princess Bubblegum's weather experimental machine gone wrong, the land of Ooo is snowing and it's BMO's birthday. Princess Bubblegum apologises about not being able to attend BMO's birthday, but BMO doesn't care because it's more exited for Moe's arrival to the tree fort. BMO anxiously awaits for his special birthday gift that Moe has said to give. After hearing a knock on a door, BMO opens it to find a big sized MO. "Moe" says that it's his new body and they all invite him for cake. "Moe" then tells BMO about his birthday gift and says that it's a special trip to the Mo Factory. BMO is unsure on what to do, it worries that it might miss Finn and Jake but "Moe" explains that he will act as "BMO" while BMO goes to the factory. BMO accepts as "Moe" tells it that it would be a grown up by doing so.

As BMO walks to the factory it talks to air about growing up and how it will change itself. In the tree fort, "Moe," Finn and Jake are having an awkward time with each other, but "Moe" understands that he isn't BMO and tries to do his best to be their friend. BMO arrives at the Moe factory and sees DMO who suspiciously asks BMO to stand on a trap door marked "X." BMO confusingly does it and DMO opens the trap door sending BMO down the trash chute. BMO encounters saws and crushers and gets it's leg stuck in one. It hangs there helplessly and confused.

Meanwhile, Finn and Jake are sleighing on a chair outside but accidentally hits "Moe." "Moe" gets upset and tells Finn and Jake that he wants to go inside to do what he wants. BMO is now shouting for help as it hangs, stuck in one of the machines. His imagination lets loose and it wonders if this was all part of Moe's plan to teach BMO about growing up. The machine opens up and BMO falls through a vent which leads to a large room. He then finds all mo's who explains everything.

It was first peaceful before a mysterious signal hijacked all the MO's in the factory to send them somersaulting down the trash chute. The MO's were crushed all together to form one MO machine called all MO's. It's processing power is extremely powerful and it tells BMO that BMO's imagination is very diverse and that BMO is unique in that sense. All MO's goes on to tell BMO that if they work together, they can find a way out of the room as all MO's has the intelligence and information of the factory and BMO, who is the key to the situation, has it's imagination to help.

Major Characters

 * Finn
 * Jake
 * BMO
 * AMO disguised as Moe
 * All MO's

Minor Characters

 * Neptr
 * Princess Bubblegum
 * Peppermint Butler
 * Moe (flashback)
 * DMO
 * LMO (flashback)
 * MMO (flashback)
 * OMO (flashback)
 * PMO (flashback)
 * QMO (flashback)
 * SMO (flashback)
 * ΨMO (flashback)
 * Snail

Mentioned

 * Air

Trivia

 * This is Adventure Time's second Christmas-themed episode since season 3's "Holly Jolly Secrets Part 1 and Part 2".
 * The promotional artwork for this episode implies that Moe is Jewish because he is seen lighting a Menorah
 * When BMO falls down the trapdoor after being tricked by DMO, Z-mo wuz here is written on the wall, implying that ZMO could have possibly survived.

Production Notes

 * This is a half-hour special episode.
 * This is the last episode of Adventure Time to air in 2015.

Episode Connections

 * Finn and Jake sled through the snow on an office chair in a homage to the opening scene of "Prisoners of Love," which Finn references by saying "Classic."
 * Princess Bubblegum seems to still hold throne as she regained it in "The Dark Cloud."
 * The MO Factory is seen again for the first time since "Be More."
 * BMO speaks to Air for the first time since "BMO Lost"