Twelve-year-old Finn battles evil in the Land of Ooo. Assisted by his magical dog, Jake, Finn roams the Land of Ooo righting wrongs and battling evil. Usually that evil comes in the form of the Ice King, who is in search of a wife. He’s decided he should wed Princess Bubblegum, though she doesn’t want to marry him. Still, he persists in trying to steal her away, and Finn and Jake, along with Lady Raincorn (a cross between a unicorn and a rainbow) do their best to keep her from harm.
The finale itself is open ended, as the series will officially continue its “Season 11” in comics, but fans were treated to a special montage outling where characters at the end of the season. Princess Bubblegum and Marceline are seen cozily watching TV together, and fans are led to believe that their relationship has become concrete.