The First Episode Spoiler is a specific type of plot twist in which the first episode of a series contains a plot twist which comes as a surprise to viewers who have just started watching, but immediately goes on to become an important plot point or premise to the series. As such, it may be hard (and in many cases impossible) to describe the series without completely ruining the suspense during the first episode. This is most common in plot-driven series, although it can occasionally be found in the pilot episodes of premise-based series. For a literary example to qualify, the twist should take place within the first few chapters, or else it becomes a regular plot twist.