Adventure Time Comic Issue #8

At Queen Bubblegum's laboratory, Finn and Jake and Bubblegum begin to be attacked by evil robots. Using Tank Legs as a bomb, Finn, Jake and Bubblegum escape the Candy Kingdom with seconds to spare. The Candy Kingdom explodes, killing all the evil robots inside, but more are on the way.

Finn, Jake, and Bubblegum come across Choose Goose, who offers to sell them a sword that can help destroy the evil robots for 50 gems. Finn only has 49 gems, so Choose Goose does not sell it to them. Finn and Bubblegum decide to run to Marceline's cave, while Jake stretches himself huge to fight off the incoming evil robots. After getting to Marceline's cave, they seal the door which gives them ten minutes until the robots break in.

Finn then comes up with an idea to put all the heavy lifting on their future selves; the three swear to spend the rest of their lives working on time machines to send back to that exact moment, which they will then use to go back in time to stop the evil robots from happening. A time machine teleports into the cave with two seats and a note saying that Bubblegum should stay behind and not travel back with Finn and Jake. After hugging, Bubblegum kisses Finn and tells him that six years is not such a big deal when they are older.

Finn and Jake use the time machine to go back in time, while Bubblegum sits and waits, when suddenly a giant robot hand crashes through the cave's ceiling. BMO is controlling the giant robot and says that it has finally come up with a way to defeat the evil robots, all they need is giant robot suits. After Bubblegum tells BMO that Finn and Jake that they've already gone back to fix everything, they use giant robot suits to destroy the evil robots while they wait.