Rainy Day Daydream

Rainy Day Daydream is the twenty-third episode in season one of Adventure Time.

Synopsis
When a knife storm forces Finn and Jake to stay inside, they discover the power of Jake's imagination.

Plot
Finn and Jake are heading out of their Tree Fort, getting ready for a day filled with adventure and Finn is slapping Jake's jowls for fun. Finn had written a whole list of things to do on his arm, but as he reads it off to Jake, it starts to rain knives. Jake runs inside for cover and Finn stares at the storm in awe saying that he has never seen a knife storm before. Jake yanks him in and they sit on the couch wondering what to do.

Beemo appears and offers that they play Conversation Parade, a game he just made, but it was boring and Beemo's batteries die so Jake suggests that they use their imaginations. Finn says that only 'turbo nerds' use their imaginations, but Jake starts imagining stuff anyway. The first thing he imagines is that the floor is covered with lava and he starts yelling and running for safety. Finn is a little annoyed with Jake's persistence and tells Jake to watch as he 'masters reality'. Finn puts his foot on the floor and is shocked when it catches on fire. Finn comes to the conclusion that everything that Jake imagines becomes real,but invsible and tells Jake to imagine that Beemo invented a better game but he can only manage to think of more lava. Finn becomes frustrated and tells him to imagine turning his imagination off. Jake says that he can't do that, but he says that he can imagine a switch that can shut down his imagination. But he also imagines a lot of obstacles, like traps, ghosts, monsters, poison fountains, and cute girls which Finn can't see, even though it becomes real. Finn is again frustrated because Jake is making things a lot more complicated than they need to be.

Finn and Jake go past all these and eventually come to an imaginary riddlemaster that gives them a riddle. He says that the penalty for answering wrong or not answering is death by poisonous snakes, but Finn is like, "Yeah!? Well, I've got a missile! Yaaaahh!" and then the door explodes, and the invisible snakes start biting them. They start running because the imaginary toxins are going to kill them, and then Finn and Jake make it to the off switch. Finn fumbles for a bit looking for it, and then gets it and the bite marks and poison vanish, so Finn and Jake are not going to die.

However, without his imagination, Jake loses his 'bombastic' personality and starts acting emotionless. Finn tells Jake that he has to bring back the imagination machine, but Jake says that he can't, and that it does not matter because the imagination was pointless. Then Finn says that it was important and decides to imagine his own switch so that he can turn Jake's imagination on, but his head is empty. So he starts imagining things, mainly the switch, and then for some reason a lyre player shows up and starts singing and Finn imagines a penguin and some spaghetti for the imagination lyre guy to trip over and fall into. Then Bellamy Bug shows up and offers Finn a doily, and Finn gets mad. Then Finn asks the bug how he got in his imagination, and the bug replies "I don't know. You tell me. *giggle*. Perhaps I represent your secret desires.. *giggle again*.. To be civilized." And then Finn smacks the bug away and turns its arms into a robot arm and a octopus tentacle and then the arms start to beat up the bug. And then some penguins come and crowd around the bug, and carry it away. Then Finn runs over to the switch that he made, and flips it. Then Jake seems to have his imagination back, but then a fairy appears And pushes a hyperdrive button with her butt, but for some odd reason Finn put it there and did not want anyone to push it. This puts Jake's imagination on a crazy, crazy thing, and Finn comes out of his imagination and Jake tells him that he imagined his mom naked. Then Jake tests his imagination and finds it under control, and the knife storm stopped. Then Finn imagines that the floor is lava, and then Jake pretends to melt. He says "Just kidding." And then Finn says "Good Dog" and pats Jake's head.

Main Characters

 * Finn
 * Jake
 * Beemo
 * Fairy
 * Bellamy Bug
 * Lyre Player
 * Bazooka Goblin
 * Imaginary Penguins

Trivia

 * Confirmed on Pen Ward's Formspring, this episode is his favorite season one episode.
 * The commercial for this episode is the very first commercial for the series in live action.
 * When it originally aired, this episode was cut into two parts with a commercial break in the middle. This was done so that the end of the episode led directly into the premiere episode of Regular Show, without a commercial in between. The insertion of a commercial break continued for the next couple of weeks, a fact that Frederator Studios was not happy about, based on this blog post.
 * While Finn and Jake are in one part of their Tree Fort, the initials AT are carved into a heart, possibly symbolizing Adventure Time.
 * The juice boxes Jake find with the candy have a picture of Wildberry Princess on them.
 * When Jake sits up in the fort, there is a picture of what could be Lady Rainicorn.
 * One of the candies in the box looks like an animal, but changes shape when Finn holds the box.
 * The sword above the AT heart is similar to Finn's sword.
 * The title card shows Jake and Finn resting on top of the Tree Fort.
 * Finn and Jake have what may be a picture of a naked woman in their house, which is also seen in the episode "The Jiggler".
 * This episode has the strongest word of profanity yet, namely, the word crap.