A plot device involving an unexpected and improbable intervention, often supernatural or artificial, resolves a seemingly unsolvable difficulty. Imagine a character trapped in a collapsing building, only to be rescued by a conveniently placed hot air balloon. Such interventions can feel contrived and unsatisfying, disrupting the established narrative logic.
While generally considered undesirable in storytelling due to its perceived laziness in resolving conflict, this type of narrative resolution holds historical significance. Its origins trace back to ancient Greek theatre, where a crane (mechane) would lower a god (deus) onto the stage to resolve the plot. Understanding this historical context can illuminate its impact on narrative structure, even offering a lens through which to analyze contemporary works employing similar, albeit often less literal, devices.