Ice King explains that after Finn, Jake, and BMO left on their adventure Betty (voiced by Felicia Day) attempted to get Ice King to remember who he really is but in the process was kidnapped by Patience St. Pim (voiced by Lauren Lapkus), the ice elemental. Patience used Betty's magic to ensnare Princess Bubblegum, Flame Princess (voiced by Jessica DiCicco), and Slime Princess (voiced by Maria Bamford), who make up the remaining elementals. Unfortunately, Patience's plan went awry, and the elemental magic she unleashed took over Ooo. Finn, Jake and Ice King travel to the Ice World and confront Patience, who is disappointed that her plan did not go as planned. The group flee from the Ice Kingdom and rescue Betty, who argues that she can reset the world with an alternate-universe version of the Enchiridion. In order to activate the book's power, however, the group must track down the jewels of power, which are found in the elementals' crowns.
