History Film / SixUnderground

* ArtisticLicenseChemistry: The chemical weapons purchased by Rovach are repeatedly referred to by multiple characters as "Sarin VX". However, VX and Sarin are two different compounds that behave in very different ways when exposed to an atmosphere. It would make little sense to deploy them together as they are both nerve agents that kill in about the same way (severely disrupting the body's signaling between the nervous and muscular systems, leading to a prolonged neuromuscular blockade, flaccid paralysis of all the muscles in the body including the diaphragm, and death by asphyxiation).

It tells the story of a billionaire who hires anyone presumed dead, calling them "ghosts". They use their new-found power of not being tied to any specific agency or prior life commitments to form a vigilante squad to take down notoriously horrible people and criminals. They all have number codenames to protect each others' identities. His latest target is dictator Rovach Alimov of [[{{Countrystan}} Turgistan]], who he plans to replace with Rovach's much nicer younger brother, Murat.

* AuthorityEqualsAsskicking: [[spoiler: One is in charge, and quickly proves that he's able to account for himself quite well in a fight during the Hong Kong mission and the climactic mission to Turgistan.]]

It tells the story of a billionaire who hires anyone presumed dead, calling them "ghosts". They use their new-found power of not being tied to any specific agency or prior life commitments to form a vigilante squad to take down notoriously horrible people and criminals. They all have number codenames to protect each others' identities. His latest target is dictator Rovach Alimov of [[Countrystan Turgistan]], who he plans to replace with Rovach's much nicer younger brother, Murat.

It tells the story of a billionaire who hires anyone presumed dead, calling them "ghosts". They use their new-found power of not being tied to any specific agency or prior life commitments to form a vigilante squad to take down notoriously horrible people and criminals. They all have number codenames to protect each others' identities. His latest target is dictator Rovach Alimov of Turgistan, who he plans to replace with Rovach's much nicer younger brother, Murat Alimov.

* EarnYourHappyEnding: [[spoiler: The team goes through hell and back to enact a coup in Turgistan, but in the end it's a better day for everyone. One seems to relax his "dead to the world" rule, as he goes to see his son in person and Two gets to meet Three's mother with him. Four and Five are seen rock-climbing in Monument Valley, with a smile that indicates they may become more than friends. Seven sheds his survivor's guilt, throwing away the gun that he was going to use to commit suicide. Last but not least, the team is still together, with the implication that they are going to move on to the next name on their list.]]

* RareGuns: Two and Three use [=SilencerCo=] Maxim 9 pistols to assassinate Alimov's generals. This film marks the first appearance of this firearm in any film.

* BorrowedBiometricBypass: Early in the film, one of the Six removes a lawyer's eye and One spends much of the opening CarChase trying to unlock the lawyer's phone with the eye.

** Played more seriously towards the end. Rovach orders his generals to target his own people “not where they’re strong, but where they’re weak” including ''hospitals, schools, and children specifically''. Even Rovach’s head bodyguard, who has been the picture of loyalty and sociopathic stoicism throughout the film, gives him a disturbed look.

* NoOneGetsLeftBehind: Intentionally defied by One, as one of the rules of being a Ghost is to leave a man out in the field if they somehow cannot make it back to the rest of the Ghosts. [[spoiler:Subverted later on as Seven wants to help out Four by shooting a guard chasing after him, much to One's annoyance.]] [[spoiler: In the climax , One later defies his own rule by shooting one of Rovach's men as he is about to kill Four]].

* SurprisinglyRealisticOutcome: One’s entire plan. Putting together a team of international badasses to take down evil men sounds great on paper. But what happens when six (admittedly very skilled) people are thrown on the same team with the same goal, but have different attitudes and ideals, have never worked together before, and have effectively zero command structure? Most of their missions end up as “glorious clusterfucks” with insane collateral damage and they only barely scrape by on the skin of their teeth. Only the last mission goes off (relatively) smoothly as the team gets more in-sync.

* {{Deconstruction}}: The RagtagBunchOfMisfits which make up the Ghosts are all highly-skilled specialists, but they've only worked together on one mission prior to this one. As a result they are barely functional as a team, often arguing, yelling, or even goofing off in the middle of missions, culminating in [[spoiler:Seven almost killing Three because of the latter's erratic behavior thanks to the laughing gas poured into the building]].

* ChekhovsGun: Early in the effort to free Murat in Hong Kong, Seven shoots a pool so Four can have an air pocket to breathe. Later on, Seven shoots that spot again, creating a wave so that several {{Mooks}} are swept out of the building to their deaths.

* TheDriver: Six’s role in the group. The film opens with him trying to get the group out of an operation. Three takes his place as lead driver after [[spoiler:Six’s death in the opening]].

** Several of the guards on the yacht are killed by flying tenderizers and knives pinning them to walls.

* ObligatoryWarCrimeScene: Rovach has his air force gas the refugees and aid workers who were helping them at a makeshift hospital. This convinces One to bring him down, as he witnesses the massacre when he'd been there bringing them money.