Adventure time, come on grab your friends again! Streaming service HBO Max has announced four new hour-long Adventure Timespecials, a year after the 10-season cartoon's mathematical series finale.

Adventure Time: Distant Landswill be set after the finale, which saw the end of the Great Gum War, the adventures of Jake and Finn, and the sexual tension between Marceline and Princess Bubblegum.

Like Adventure Time, Adventure Time: Distant Landswill be produced by Cartoon Network Studios, though we don't yet know which members of the original cast and crew will be returning.

We already have descriptions of all four episodes though, and it looks like we'll be catching up quite a few of the series' most beloved characters.

"BMO" will follow the titular adorable robot as they attempt to solve an emergency in space, because they are absolutely the most qualified resident of Ooo to deal with that sort of thing.

In "Obsidian", Marceline and Princess Bubblegum will go on a journey to the Glass Kingdom in order to prevent a disaster, while also exploring their pasts. Fingers crossed they'll be some time for them to explore their romantic present as well.

"Wizard City" is about Peppermint Butler starting over as a new student at Wizard School, and his attempts to clear his name after being suspected of something sinister. It sounds like Harry Potter but with a walking, talking peppermint candy.

Finally, "Together Again" will see the reunion of our heroes Jake the Dog and Finn the Human, as they "embark on the most important adventure of their lives." Which, considering the number and scale of all the adventures they embarked on over Adventure Time's 10 seasons, is a pretty big call.

HBO Max is set to launch in spring 2020, with Adventure Time: Distant Lands' "BMO" and "Obsidian" premiering exclusively on the service next year. Release dates for "Wizard City" and "Together Again" haven't yet been announced, but we can safely assume they'll appear some time after the first two.