Finn and Jake must go into the Fire Kingdom in order to retrieve Flame Princess' scented candles. Upon sneaking into her room in the palace, they overhear a plot to assasinate Flame King using ice, however all that they are capable of observing through the crack under the door is that one assassin speaks with extended "s" sounds, while the other has an untied shoelace.They follow the voice of the former through the palace's ventilation shafts, and after being chased by a chef, disguise themselves as actors preparing to perform a play for the king. Jake devises a plan in which the two of them will mimic the assassins (Finn will have an untied shoelace while Jake will talk with elongated s's") and state their plan to kill the king with ice, in order to draw out the real killers from the audience based on their expression during the performance. This display angers Flame King, who calls the play treason. The king orders the two to be executed, however Finn notices that the two excecutioners are in fact the killers. Finn gets the crowds attention by yelling "naked babies" repeatedly, and identifies the assassins. They reveal themselves to be Flame Kings nephews, whose father he had killed in order to take the throne. They are arrested and taken away to the "punishment room". Finn then asks Flame King if everyone in the Fire Kingdom was evil, including Flame Princess, he answers yes, but says its possible Flame Princess might turn good in the right circumstances.
When Finn and Jake take the candles back to Flame Princess's house, it is revealed that Flame King either hid in the candles flame or is able to communicate through them, seemingly to try to keep Flame Princess evil.
- This episode is the 100th episode of the show in the airing order.
- This is the first time that Flame Princess wears a different outfit.
- In this episode, Flambo punched Finn and Jake to cast Flame Shield in contrast to spitting on Jake in "Incendium."
- In the hallway of the Fire Kingdom's castle, there is a painting with the Chinese kanji 火, which means "fire."
- The Flame Shield spell and the Lantern used in "Incendium", returns.
- Bags from Squeez-E-Mart, which first appeared in Gotcha!, return.
- Immediately after Finn slaps Jake while they are on the grass, Finn's mouth disappears for two frames.
- Jake says, "Sufferin' succotash," a trademark quote by Sylvester the cat from the Looney Tunes. Jake uses the snake's hissing to create the effect of a lisp, another characteristic of Sylvester.
- The talk about alignments at the end references Dungeons & Dragons. In the game, changing your alignment causes experience penalties, and "chaotic neutral" is the alignment of rebels who are neither good nor evil.
- This episode has several references to the William Shakespeare tragedy Hamlet:
- Hamlet is the nephew of the traitorous King of Denmark who killed Hamlet's father, similar to how Furnace and Torcho are nephews of the Flame King who killed their father.
- Hamlet wished to take revenge upon his uncle by becoming an actor in a play where he is able to expose the king by acting out the details of the murder and watching his reaction; however, Furnace and Torcho simply tried to kill the Flame King during the play.
- Hamlet's father was killed by having poison poured into his ear, similarly someone attempted to pour ice cubes (apparently deadly and painful to Fire Elementals) onto the Flame King.
- A piece of Hamlet's famous "To be or not to be" speech from Act III is heard as Finn and Jake travel through the vents.