One Saturday morning Tails made a portal causing the Ice King to come into his dimension. Then the Ice King and Dr. Eggman team up. Finn, Jake, Sonic, Shadow, Silver, Knuckles, and Tails team up to stop them.

With Singe and The Lich fighting for the extintion of all life in Ooo, Mobius, and Sol, Ember and Co. must gain the aid of Finn and Jake & Co. in order to get back home and protect all the life from The Lich and Singe. (Singe is Ember's dark form, Spark may or may not be in this FanFiction.)