Where Have the Good Days Gone?

Was supposed to be for a contest and for the "so-called" apocalypse. But I didn't finish it in time.

When I thought of a second apocalypse for Adventure Time, I thought:
1. Candy Kingdom would be in chaos.
2. Princess Bubblegum would die (because the scientist usually dies...idk)
3. Finn wouldn't really know what to do.
4. The events would trigger Ice King's past memories of him being "Simon"
5. Marceline wouldn't be able to handle what's going on since she's one of the few who actually experienced the first "apocalypse"
6. Jake and Lady Rainicorn would have some romance action.

Eh.