Near the end of the film or episode, a character realizes something that puts many past events into a new context. The character's thought process is shown as a series of previous scenes and lines of dialogue, often with some filter on the footage this time around, culminating in The Reveal.
This is the go-to for visually representing a Eureka Moment, and is basically a mental version of The Summation. New footage can also be interspersed in the montage before the main Reveal Shot/Wham Line, making it similar to Necro Cam. Somewhat of a subtrope of Once More, with Clarity!.
- Fight Club: when it's revealed the Narrator is Tyler Durden, previous scenes are shown with him now in the place of Tyler.
- The Illusionist is narrated by Chief Inspector Uhl. In the film, a Love Triangle develops between Sophie, the stage magician Eisenheim and Crown Prince Leopold; Sophie is engaged to the latter, but does not love him. When Sophie attempts to leave a drunken Leopold, he chases after her brandishing a sword, and the following morning her body is recovered. Eisenheim, anguished by her death, puts on a series of magic shows in which he speaks with Sophie's ghost, and she implicates Leopold in her death. Growing unnerved and paranoid, Leopold kills himself. After a chance encounter with Eisenheim in the streets, Chief Inspector Uhl has a Eureka Moment, and the audience is shown a montage of clips and lines of dialogue from the film explaining The Reveal: Eisenheim and Sophie faked Sophie's death in order to escape from Leopold and drive him to suicide.
- Married to the Mob: FBI Agent Mike Downey encounters mobster Tony Russo throughout the movie while in various disguises. After the last encounter, Russo realizes why Downey looks so familiar, flashing back to Downey's various disguises, and deduces he must be some kind of undercover police officer.
- Memento: When Teddy tells Leonard he's been lying to himself to keep his motivation, previous clips are replayed now supporting that Leonard's wife survived the assault and was really killed by Leonard unintentionally overdosing her with insulin.
- Towards the end of Planes, Trains and Automobiles, as Neil is finally heading home, he starts thinking about Thanksgiving dinner with his family, which segues into thinking about his time with Del Griffith over the previous two days, specifically remembering a cryptic comment Del made: "I haven't been home in years...". Neal suddenly realizes the truth about Del, and he returns to the train station to confront Del, who confesses he's been a homeless drifter since his wife Marie died 8 years earlier.
- Predestination has a version of this, flashing back to an earlier scene where Ethan Hawke's character implies to another character that he is him from a different point in time, and soon after this is a series of snapshots (all shots from previous scenes) of the character throughout his/her life, from infancy to the present day, showing the character's entire personal history in chronological order for the first time.
- The Prestige: When Borden and Angier explain their tricks to each other at the end, previous clips are shown along with new footage, explaining how they did them and showing more of the personal sacrifices they had to make.
- It wouldn't be a Saw movie without a huge one at the end of almost every single one, which only makes sense given the huge and extremely complex overarching plot line, not to mention that some movies happen literally at the exact same time as another one or take place out of chronological order.
- In The Sixth Sense when Bruce Willis's character remembers Cole's statements about dead people not knowing they are dead, and he also remembers previous events, most notably when he was shot at the beginning of the movie, now with the insight that he was really dead/dying in those situations.
- The Usual Suspects when Kujan reveals to Verbal Kint that Keaton was Keyser Söze, flashing back to various moments of the group and of Kint's interactions with Keaton, among others. Happens a second time when it's revealed Kint fabricated the story from images and names on the bulletin board in the room and that he himself is Söze, which Kujan realizes as he looks at the papers and flashes back to all the things in the story that Kint/Söze based on them.
- Arrested Development downplayed this in the episode "Storming the Castle". Gob meets with Michael to discus his latest issue with the Magicians' Alliance. He ends the meeting by shaking his hand with both hands, saying "I appreciate your time." Later, Michael goes to check the time on his watch and ends up looking at his bare wrist. He then flashes back to the handshake and realizes that that's when Gob stole his watch.
- The Community episode "Aerodynamics of Gender" had Jeff and Troy come upon a secret trampoline maintained by college gardener Joshua. After Pierce gets injured while using it, Joshua is fired and makes racist comments about Troy. When Troy comments that the racism came out of nowhere, Jeff thinks back and realizes it didn't: specifically, he recalls two comments that didn't sound racist out of context ("A place free from the darkness", "Some people are natural jumpers") and Joshua showing off a tattoo of a swastika (which the audience didn't see before).
- The Flash (2014):
- In season 3 when Barry figures out Savitar's identity, he flashes back to all the cryptic things the characters (including Savitar himself) have said about the villain.
- Combined with The Summation when Sherloque Wells reveals in S5E17 that Nora is working with Thawne, cutting to clips of Nora's actions and Sherloque's investigation.
- In the penultimate episode of season 5, Ralph flashes back to his previous observations about Thawne and the timeline as he realizes "The dagger is Thawne's plan."
- Happens twice in the season 6 episode "Marathon": When Iris explains to Joseph Carver how she realized his company is affiliated with the evil organization Black Hole, previous shots of the company's and organization's light-based weapons are shown, among others. Happens in a more downplayed way when Iris realizes the company's relation to mirrors, flashing back to her source saying the word "mirror" before dying and to the room number AV3 in Carver's building which is Carver's wife's name, Eva, in reverse.
- A rarer external example in "Liberation", when Iris sees previous scenes replayed in mirror screens of some sort, showing her that Eva McCulloch was behind her abduction into the Mirrorverse and has been working with her mirror doppelgänger this whole time.
- Downplayed in Legends of Tomorrow: Martin Stein realizes in "The Legion of Doom" that the evil speedster is Eobard Thawne, aka the Reverse Flash, and the reason he can't stay in one place for very long is that he's not supposed to exist. Stein briefly flashes back to the character's death in season 1 of The Flash, where Eobard was supposedly erased from existence due to the death of his ancestor Eddie Thawne.
- Parodied in A Touch of Cloth, when DC Anne Oldman realizes that Chief Constable Tom Boss is the Serial Killer they're looking for. We get a series of flashbacks showing him asking her to make sure he's kept aware of all developments on the case, followed by two we haven't seen: one of him asking him to help lick the blood off his sword, and another of him flat-out telling her what he's doing and why. And then writing it on her hand.
Oldman: I just didn't put it together until now!
- Further parodied in Series 2 when Jack Cloth realises that the "Big Man" that Michael Macratty is working for is also Chief Constable Boss, and a series of flashbacks occurs that once again ends in a clip we didn't see the first time. It's then subverted when Cloth learns that Boss is actually innocent this time, and the Big Man is actually Hope Goodgirl.
- In BioShock, when Jack reaches Rapture Central Control, Andrew Ryan explains The Reveal that Jack is actually an unwitting Manchurian Agent. The player is then treated to a sepia-tinted montage of Atlas using the phrase "Would you kindly?" in conversation, now revealed to be Jack's Trigger Phrase.
- Knights of the Old Republic: Malak shows up and taunts the Player Character "Even the combined power of the Jedi Council couldn't keep your true identity buried forever...", there's a cutscene playing back several points of the game; the five Star Map locations, several bits of the player's "visions," and a couple offhand lines from Carth "They say the Force can do terrible things to a mind. It can destroy your memories and wipe away your very identity." and Bastila "What greater weapon is there than to turn an enemy to your cause? To use their own knowledge against them?" from earlier in the game. And the last one seals the deal Revan takes off the mask and it's the Player Character with full Dark Side Corruption.
- In Singularity, when Renko realizes his quest to reset the timeline has been done many times already, he has a flashback to all the Time Travel related graffiti he's come across.
- In The Simpsons episode "The Great Louse Detective" there is such a montage framed within a Thought Bubble as Sideshow Bob thinks back to the clues pointing to the identity of the person trying to kill Homer, triggered by someone mentioning how a mechanic tuned up the Mardi Gras parade floats. The clues were the spa invitation envelope that had a fingerprint stained in motor oil, how a wrench was used to trap Homer in the sauna, and the meeting with the mechanic towing Homer's car. Ultimately, it pointed to the mechanic as the one trying to murder Homer.
- South Park: Kyle has one near the end of "Members Only", when he flashes back to various quotes from throughout the season and deduces that the Internet troll "Skankhunt42" is his own father.
- Steven Universe: Future: As Dr. Maheswaran tells Steven that life-threatening events in his childhood could have led to his present post-traumatic stress, Steven begins flashing back to all the dangers he encountered in the series ever since he was 14.