flashback
flashback (retrospectiva)
a scene from an earlier time placed in the middle of a story, often to explain the present.
Example
Two years earlier, she had been laid off from the plant. (The story jumps back in time.)
In Spanish
flashback (retrospectiva) — una escena de un tiempo anterior que se coloca en medio de un cuento, a menudo para explicar el presente.
Two years earlier, she had been laid off from the plant. (El cuento salta hacia atrás en el tiempo.)