Cartoon Network has been roaring along lately with the awesome animated offerings, and Adventure Time continually ranks on top of the list for what we’re getting! Tonight’s episode (airing July 25th, for you calendar folks out there!) finds Finn and Jake inside Marceline’s mind. That’s right, you read correctly – we’re adventuring inside a brain! When Marceline accidentally casts a sleep spell on herself, it’s up to our boys (er… boy and dog) to “head” inside, find her Memory Core, and retrieve the spell from her memory, or else she’ll sleep on forever. It’s kind of like Inception, with a whole lot of Rag Wizard thrown in. Check out these sneak peek teaser clips and let us know what you think – then head over to the CN tonight and check out the episode for yourself!