When Finn finds a porcelain lamb, it transports him into the spirit world and only the Ice King can help get him out.
All episodes — Season 4
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S4 E1Hot to the Touch
Apr 2, 20127.611 min
Finn develops a crush on Flame Princess and tries to get to know her, which proves difficult due to her destructive power.
S4 E2Five Short Graybles
Apr 9, 20127.311 min
Follow as 5 stories intertwine together, can you find the connection?
S4 E3Web Weirdos
Apr 16, 20126.410 min
When Finn gets trapped in a giant spider web, he ends up playing marriage counselor to a couple of grumpy arachnids.
S4 E4Dream of Love
Apr 23, 20124.610 min
Tree Trunks is courted by an oinking suitor, but much to Jake’s dismay, this interferes with her baking habits.
S4 E5Return to the Nightosphere
Apr 30, 20127.411 min
Marceline’s dad banishes Finn and Jake to the Nightosphere, and it stinks. Literally.
S4 E6Daddy's Little Monster
Apr 30, 20127.111 min
Finn and Jake attempt to rescue Marceline and find out what's making her behave so strangely.