"Come Along With Me," focuses largely on the conflict known as the Gum War. The culmination of rising tensions between Princess Bubblegum (Hynden Walch) of the Candy Kingdom and her Uncle Gumbald (Fred Melamed) of Gumbaldia, the battle had the potential to turn deadly very quickly. Thankfully, the timely intervention of Jake, Finn, and a healthy serving of nightmare juice prevented such a gruesome outcome — sending themselves, PB, Gumbald, and Finn's grass doppelgänger, Fern (Hayden Ezzy), into a hallucinatory state to work out their differences.
In their trance, Princess Bubblegum and Gumbald clash in the Dream Realm, but they eventually put their feud to bed. She apologizes for turning him into the happy-go-lucky Punch Bowl using Dum Dum Juice, and for not allowing him to further his vision for the Candy Kingdom. In response, he calls off his attack on the Candy Kingdom's forces. Meanwhile, Fern and Finn go head-to-head, but then team up to face the Grass Demon that has warped Fern's mind. Allies once again, they defeat the entity together and end their rivalry once and for all.
Now awakened from their slumber, Bubblegum and Gumbald prepare to end their war. Conniving as ever, it's revealed that Gumbald had a vial of Dum Dum Juice on hand to turn his niece into a hapless candy person. Luckily, Aunt Lolly (Maria Bamford) steps in and uses the serum to turn Gumbald back into Punch Bowl. In his stead, she legitimately calls for a truce with PB and the Candy Kingdom. Simultaneously, Fern dies without the Grass Demon to keep him alive, leaving behind a seed in the shape of the Finn Sword.
