usage: a transition (in literary or theatrical works or films) to an earlier event or scene that interrupts the normal chronological development of the story
2. flashback, recurrence, return
usage: an unexpected but vivid recurrence of a past experience (especially a recurrence of the effects of an hallucinogenic drug taken much earlier)
Verb
1. cut back, flash back, return
usage: return in time; "the film cut back to an earlier event in the story"