After being caught by a giant spider, Finn and Jake try and help the arachnid with its marital problems so they won't be eaten.
S4, Ep4
23 Apr. 2012
Dream of Love6.0 (1,549)
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Tree Trunks finds love but her public displays of affection nauseate everyone around her.
S4, Ep5
30 Apr. 2012
Return to the Nightosphere8.2 (1,480)
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Finn and Jake find themselves imprisoned in the dark realm of the Nightosphere with no memory of how they came to be there.
S4, Ep6
30 Apr. 2012
Daddy's Little Monster8.4 (1,465)
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Continuing their mysterious quest in the Nightosphere, Finn and Jake must rescue their friend Marceline the Vampire Queen.
S4, Ep7
7 May 2012
In Your Footsteps7.4 (1,416)
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A cute, bumbling bear begins to follow and mimic Finn. At first Finn enjoys having the furry admirer, but soon becomes uneasy with the bear's devotion.
S4, Ep8
14 May 2012
Hug Wolf7.2 (1,444)
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A Hug Wolf, a monstrous wolf that gives hugs against the will of its victims, turns Finn into one of its kind.
S4, Ep9
28 May 2012
Princess Monster Wife7.2 (1,467)
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The Ice King steals various body parts from all the princesses to construct his own perfect princess bride.
S4, Ep10
4 Jun. 2012
Goliad8.0 (1,458)
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Princess Bubblegum uses her own DNA to create an intelligent and immortal sphinx which is planned to one day succeed her to the throne, except that Finn and Jake accidentally affect those plans.
S4, Ep11
11 Jun. 2012
Beyond This Earthly Realm7.7 (1,384)
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A magic curse turns Finn into a ghost, invisible to everyone but the Ice King.
S4, Ep12
18 Jun. 2012
Gotcha!7.0 (1,412)
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Lumpy Space Princess sets out to write a book on how to catch a man and goes undercover as Finn and Jake's secretary in order to seduce Finn.
S4, Ep13
25 Jun. 2012
Princess Cookie8.7 (1,636)
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The Candy Kingdom faces a hostage crisis from a cookie that demands Princess Bubblegum's crown.
S4, Ep14
16 Jul. 2012
Card Wars8.5 (1,596)
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As Finn joins in on Jake's favorite, hyper-complicated card game, emotions and poor gamesmanship run high.
S4, Ep15
23 Jul. 2012
Sons of Mars8.2 (1,458)
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Magic Man switches bodies with Jake so that he can escape his trial on Mars, leaving it up to Finn to reveal the truth and save his friend.
S4, Ep16
30 Jul. 2012
Burning Low8.5 (1,547)
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Finn and Flame Princess cautiously begin a relationship as boyfriend and girlfriend, of which Princess Bubblegum disapproves.
S4, Ep17
6 Aug. 2012
BMO Noire8.2 (1,530)
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BMO uses hard-boiled detective skills to locate Finn's missing sock.
S4, Ep18
13 Aug. 2012
King Worm8.4 (1,478)
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Finn finds himself trapped in a bizarre dream, the outcome of which may determine if he ever wakes up.
S4, Ep19
20 Aug. 2012
Lady & Peebles7.9 (1,411)
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Princess Bubblegum and Lady Rainicorn must rescue Finn and Jake.
S4, Ep20
27 Aug. 2012
You Made Me8.0 (1,416)
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The would-be usurper to the throne, Lemongrab, returns to the Candy Kingdom, demanding volunteer subjects for his own kingdom.
S4, Ep21
3 Sep. 2012
Who Would Win7.4 (1,376)
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While training for an epic battle, Finn and Jake take their frustrations out in a fight against each other.
S4, Ep22
17 Sep. 2012
Ignition Point7.7 (1,366)
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Finn and Jake sneak into the Fire Kingdom to retrieve some of Flame Princess' things, and stumble onto a plot to kill the Flame King.
S4, Ep23
1 Oct. 2012
The Hard Easy7.6 (1,384)
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A tribe of swamp creatures ask Finn and Jake to save them from a Mega Frog.
S4, Ep24
8 Oct. 2012
Reign of Gunters7.9 (1,375)
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While the Ice King is away, his sidekick Gunther the penguin uses a magic amulet to conquer the countryside and attack the Candy Kingdom.