sce·nar·i·o 
(sĭ-nârē-ō′, -när-, -năr-)
(sĭ-nârē-ō′, -när-, -năr-)n. pl. sce·nar·i·os
1. An expected or supposed situation or sequence of events: "It was almost impossible to conceive a scenario in which he would fail to qualify for at least three Olympic events" (Jeremy Schaap).
2. An outline of the plot of a dramatic or literary work.
3.
a. An outline or treatment for a screenplay.
b. A screenplay.
[Italian, scenery, plot outline, from scena, scene, from Latin scaena; see SCENE.]