探险活宝全集故事讲述的是两个好朋友—人类小男孩Finn（台译阿宝、直译芬）和拥有魔力的狗Jake（台译老皮、直译杰克）在LandofOoo（台译哇赛秘境、直译噢噢噢大陆、）的冒险旅程。

Finn and Jake chase the Lich through a dimensional portal where they meet Prismo, who tells them that the Lich wished for the extinction of all life. This leads Finn to wish that the Lich "never even ever existed.

Finn attempts to prove to Jake that Flame Princess isn't evil while trying to win her heart turns into a quest to stop her from taking over the Goblin Kingdom.

A human boy and his adopted brother - a magical dog - set out to become righteous adventurers in the Land of Ooo.