Adventure Time: Fionna and Cake (Seasons 1–2)

Adventure Time: Fionna and Cake (2023) is a Cartoon Network animated series you can watch online on iFILM. Fionna lives in a world with no magic — dead-end job, boring days, and dreams that feel more real than her actual life. Then reality cracks open.

Former Ice King Simon Petrikov shows up and pulls Fionna and her cat Cake into a wild multiverse-hopping ride. Voiced by Madeleine Martin, Roz Ryan, Ashley Burch, and Harvey Guillen, the characters bounce between alternate worlds while a new antagonist hunts them down with very specific intent. The stakes are real: erasure from existence.

Fionna and Cake started as fan-fiction characters inside the original Adventure Time — gender-swapped versions of Finn and Jake that became legendary before they ever got their own story. Creator Pendleton Ward's universe finally gives them the spotlight, and the result is sharper and stranger than expected. Stream Adventure Time: Fionna and Cake online on iFILM.