http://tvtropes.org/pmwiki/pmwiki.php/Recap/AdventureTimeS9E8TheFirstInvestigation
Finn and Jake investigate a disturbance at their childhood home.
Tropes:
- Call-Back:
- The one responsible for the time anomalies is Clock Bear, one of Dr. Gross' experiments from "Preboot".
- Jake witnesses his own birth from "Joshua and Margaret Investigations".
- The Shapeshifter that impregnated Joshua with Jake returns.
- Cliffhanger: Jake is abducted by the shapeshifter that originally impregnated his father. Finn only finds a note that reads "B.R.B (Be Right Back): Jake", suggesting that he went willingly.
- Color Failure: The squirrel turns pale after seeing something in the old apartment, which turned out to be a freaked out Jake.
- Cowardly Lion: Jake, full stop. While Finn keeps a level head about the entire situation, Jake is scared shitless for almost the entire episode.
- Funny Background Event: There's a cracked mirror in the bedroom with a note that reads "You look great".
- Internal Reveal: Jake finally learns that he is actually the offspring of a shapeshifter.
- Skewed Priorities: Kim Kil Whan seems less concerned that something potentially dangerous is living in Joshua and Margaret's old home than in the fact that it's doing so rent free.
- Stable Time Loop: Finn discovers that he and Jake were unintentionally recreating events from the past due to a damaged Clock Bear's residing inside Joshua and Margaret's house. Most notably that Jake was the ghost that traumatized Kim Kil Whan's squirrel employee, shape-shifting himself in a fit of panic and frustration.
- Suddenly Voiced: We hear the shapeshifter speak for the first time and it has a suprisingly high-pitched non-threatening voice.
