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 the first time that Flame Princess wears a different outfit.
- This reveals that Finn already knew about Flame Shield due to the fact that he asked Flambo to cast this to them.
- In this episode, Flambo punched Finn and Jake to cast Flame Shield instead of spitting on them in contrast to "Incendium."
- Flame King said that Flame Princess is evil but admitted that she can be become good from her experiences.
- The Flame Shield spell first used in "Incendium" returns.
- At one point, when Finn was rolling on the grass with Jake, his mouth has dissapeared.
- Jake says, "Sufferin' succotash," a trademark quote by Sylvester the cat from the Looney Tunes.
- The talk about alignments at the end references Dungeons and 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.
- Furance, like Hamlet in the play, is the nephew of the traitorous king of Denmark who killed his father (similar to the Flame King), making him wish to take revenge upon him, doing so by becoming an actor in a play where he is able to expose the king as the monster that he is.
- 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.