Deus ex machina

A deus ex machina (/ˈdeɪ.əs ɛks ˈmɑːkiːnə/ or /ˈdiːəs ɛks ˈmækɨnə/;^[1] Latin: "god from the machine" pronounced [ˈdeus eks ˈmaː.kʰi.na]; plural: dei ex machina) is a plot device whereby a seemingly unsolvable problem is suddenly and abruptly resolved, with the contrived and unexpected intervention of some new event, character, ability, or object. Depending on how it is done, it can be intended to move the story forward when the writer has "painted himself into a corner" and sees no other way out, to surprise the audience, to bring a happy ending into the tale, or as a comedic device.