Sometimes, with this sort of thing it feels like this:
Oh no! Some dumbass has unleashed [magical being:] from [magical dimension:] using [whatever:]. Now [our hero:] has to find [magical item:], which is located in [unlikely place:] guarded by [unlikely person:]. Holy cow! [bloodsplatter:] [political commentary:] Now that [our hero:] has found [magical item:] but [plot twist:] [past events coming to the fore:] [guilt:]. In the end, [double-cross:] [magical item as plot twist:] and then [Swamp Thing:]. The end.