Hidden Army Reveal


The hero/villain has defeated their final target, they stand triumphant, only for an entire army to appear out of thin air, apparently they were all hiding, waiting for a signal of some kind.

This army could be as few as four or as many as thousands, but they must appear out of nowhere and surround the character.

The method of hiding isn't important as look as the area appears empty on initial inspection and leave the character wondering where the hell they came from.

Related to You and What Army? and The Cavalry.

Note: To clear up any possible confusion. For something to be an example of this trope the army in question needs to be physically present, but not visible. This means teleporting in armies don't count. This trope can overlap with You and What Army? and The Cavalry, indeed an example might be present on all three trope pages.


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    Anime & Manga 
  • In One Piece, at the start of Marineford War, the Marines stationed at Marineford saw Whitebeard's legion of pirate allies marching onto the bay, but Whitebeard himself is out of sight. When they're coming close, suddenly giant bubbles appeared from the ocean, revealing Whitebeard's own fleet.

    Comic Books 
  • In one Batman comic, Batman and Ras al-Ghul are talking, with a bunch of his assassins revealing themselves around the two (they were buried in the sand).

    Films — Animation 
  • Mulan: As Mulan's unit is attacked by snipers in a mountain pass, they fire cannons at them, which seems to hold them off. But then, as the smoke clears, Shan Yu appears at the top of a ridge. And just behind them, about a thousand Huns on horseback...

    Films — Live-Action 
  • GoldenEye. Near the end of the film a field full of marines and a couple of helicopter appear at the shout of "Yo! Marines!" (Youtube clip)
  • Predator 2. Several predators de-cloak just after the hero has finished killing one. Apparently, they were watching, and approve.
  • In The Return of the King Aragorn pulls this when he arrives at the battle of Minis Tirith. What appears to be just one man charging at the enemy is suddenly one man followed by an Army of ghosts.
  • In Serenity, this tactic is used to get past the Operative's fleet surrounding Mr. Universe's planet. The planet is surrounded by an ion storm which can mask a ship's signal — The Operative sees the tiny Serenity and assumes he has won already, before an enormous Reaver fleet that had been chasing Serenity emerges from the ion cloud behind it. The Alliance wins the resulting battle, but Serenity gets through the blockade in the chaos.
  • In Keep Your Powder Dry (1945), some female soldiers have a picnic and go swimming in some sort of lake. A male officer comes up to them, tells them there's a 'problem', and marches his dozens of camouflaged men away.

  • In Harry Potter and the Deathly Hallows, Voldemort appears to have the battle won, when The Cavalry — Professor Slughorn, the centaurs, the giants, supposedly (says non-canonical Word of God) a bunch of Slytherins — explode out of the Forbidden Forest and attack the Death Eaters. Voldemort and company are routed.

    Live-Action TV 
  • Sharpe's Waterloo has this twice.
    • Sharpe tells Upper-Class Twit Prince of Orange that the battlefield is not empty, as the Prince keeps saying, because there are heavy cavalry hidden in a patch of dead ground behind a rise. The Prince gets a nasty shock when the cavalry turns up.
    • Napoleon is surprised by a sudden appearance of reserves for Wellington's army, because Wellington had some of his troops (also Real Life example) lie on the ground just behind the crest of a hill so they could not be seen until he gave the order to stand up.
  • In Doctor Who, "A Good Man Goes to War", the Doctor tries to create a Let's You and Him Fight scenario between two armies united by their desire to kill him. The leader avoids this by having his men unload their weapons... at which point the Doctor's backup decloaks and it turns out they are surrounded by an army of the Doctor's allies.
  • Star Trek: The Next Generation: In "The Defector", Picard is ordered to take the Enterprise to investigate a suspected Romulan base located in the Neutral Zone. As it happens, the leaked intel regarding the Romulan base was a Batman Gambit by the Romulans to lure the Federation into violating the Neutral Zone and giving the Romulans casus beli to destroy Enterprise and declare war on the Federation. As soon as Admiral Tomalak finishes boasting to Picard, a squadron of Klingon Birds of Prey uncloak around the Romulan ships, ready to destroy them as soon as they open fire. Tomalak withdraws without a fight, and war is avoided.

    Video Games 
  • Call of Duty
    • There's a moment in Call of Duty 4: Modern Warfare where the player starts out looking at what appears to be empty grassland, even after a replay not really knowing where their ally is until part of the ground gets up and starts moving.
    • Call of Duty: Modern Warfare 3 does a non-foliage variant during the stealth mission in Prague, where Price sneaks up on and takes out a sniper on a rooftop just as the player is sighting in on him, then when told about how lopsided the odds are, reassures you that he's "brought friends" - cue as many rebels as could possibly fit on that rooftop revealing themselves and opening fire on the opposing army.

    Web Animation 
  • The climactic battle in the eleventh season of Red vs. Blue begins this way, with Locus showing up seemingly alone and the other Feds uncloaking soon after.

    Web Comics 
  • Girl Genius shows an example of this being used as a legitimate military tactic. During the siege on Mechanicsburg, the Baron's army appears to be in complete disarray for a portion of the proceedings, until the Baron decides it is time to make his move, at which point the "misdirection and phantasmagoric" units, which had in fact been creating the appearance of disarray deliberately, fall back to reveal an incredibly large, regimented and well-organised army that had been obscured by the maelstrom.