History Film / TimeTrap

* YearOutsideHourInside: Exaggerated. For every second spent inside the cave, a day elapses outside, as is shown by the days and nights passing every second when looking out of the cave opening. Or so we are initially led to believe. [[spoiler:It's not days but ''years'' that elapse as the seconds tick by in the cave.]]

* ADateWithRosiePalms: Furby's mother implies that she caught him doing this.

* AndroclesLion: Though initially fearful of the future explorer, Cara bonds with him after she sees him healing Taylor, and she returns the favor by returning his weapon when he loses it fighting the cavemen and staying with him when [[spoiler:his breathing mechanism is broken]]. The explorer repays her for the last part by revealing that she and her companions were declared missing [[spoiler:and humanity left the planet while they were in the cave.]]

* EvenEvilHasLovedOnes: Taylor finds a cavechild snarling next to his dead mother. [[spoiler:The child then uses the Fountain's water to revive his mother and other cavepeople.]]

** The cavemen know the properties of the water despite being down there, from their perspective, for several hours or a few days at most, and one figures how to disable the explorer's ladder after seeing the main group using it.

** Despite being appearing silly and cowardly in the beginning, Furby is the one to find Hopper's rope after the rest of the group goes in the cave, reasons that everyone must be dead when they don't answer calls for over a day, and tries to climb down Hopper's rope in a last-ditch attempt to get his keys and start his car in order to return to civilization (implying that he can drive to some extent despite being 13).

* TrappedByMountainLions: Furby is left outside while the rest explores the cave. With no means to leave, he spends a night in the car hearing coyotes howling around.

* TimeTravel: The main characters discover that since they have been placed in a state of suspended animation, they are rapidly going forward into the future.

* AfterTheEnd: When Cara climbs out the of the cave, she emerges onto a desolate wasteland with a wall of dust approaching her. She also has trouble breathing and is constantly shivering. Whatever happened to Earth, it was not pretty. This is especially jarring because when they entered the cave, they were in the wilderness surrounded by nature.

** Jackie is the character introduced next after Hopper and seems set up for main character status, only to injure her ankle in the climbing down and almost be demoted into TheLoad.
** When Cara tries to climb out of the cave, she breaks down in tears and frantically tells Taylor to get Veeves away. Viewers who are familiar with the film's premise might guess that she has seen a clue as to the rapidity of time passing by, such as watching the sun speed across the sky multiple times. In reality, [[spoiler: she has seen Furby's body.]]

** Bordering on CatScare, after some time getting hints that there may be a hostile presence in the cave, the group sees a crounching figure crawling towards them in the dark... and it's [[spoiler:Jackie, who they left in another room.]]
* BigDamnHeroes: [[spoiler:Cara returns after some time outside and uses some fast future mechanical tentacle things to rescue the rest.]]

* TheFriendNobodyLikes: Furby's ApocalypticLog includes a message for his mother where he says he's extra disappointed about his companions disappearing because he though they wanted to be his friends this time, implying that there had been other times he tried to reach out to people and was shunned. Unbeknownst to him, only Veeves, the girl who has known him since kindergarten, actually likes to have him around.

* HealingSpring: The Fountain of Youth is this. The center of the cave system, where the time dilation is densest, shows a waterfall with water gushing from it. Sprinkled throughout the cave system are residual water springs from the Fountain. This is used to heal [[spoiler:Taylor and later Furby, and the cavemen are shown using the water to heal others.]]
* HeroicSacrifice: [[spoiler:Both Taylor and the explorer]] put their lives on the line to defend the rest of the gang from the cavemen. Fortunately, this is the point where we learn [[spoiler:that the Fountain of Youth can bring people BackFromTheDead.]]

** Furby mentions how angry his mother will be with him and his friends, after they left to go into the cave and disappeared for several days. [[spoiler:From his perspective, anyway; in actual fact, from his mother's point of view he disappeared ''forever''.]]
** Building on the above example, [[spoiler:the astronaut's tech scans Cara and Veeves' faces and finds a (by then ancient) news item of their father appearing on TV begging for information about what happened to his daughters, who from his perspective had been missing for 14 days at that point. Sadly, of course, by the end of the movie it's clear that they never returned home and he lived out the rest of his life never knowing what happened to them.]]
* NeckSnap: [[spoiler:A caveman kills Furby by snapping his neck]] after he falls into the cave.

* OurHumansAreDifferent: In the future, humans have evolved into eight-foot-tall beings who can't breathe oxygen rich air anymore. In the far future, they have grown claw-like fingers that can wrap around someone's head. [[spoiler:Thankfully, they are nice.]]
* OutsideContextProblem: Say what you will, but the team did come prepared, with good, sturdy rope to climb into the cave, and even a GPS tracker to call for help. [[spoiler:Too bad they didn't count on the rope fraying and breaking from age due to the TimeDilation; neither did they count on ending up in the far future, when there would be no GPS satellites to receive their signal.]]
%%* PoorCommunicationKills

* RedHerring: Taylor takes one of the cowboy's guns, noting that there are four bullets inside - one for him and each of his companions, and they think they can't leave the cave at this point. Yet the issue of suicide never comes up, and Taylor doesn't fire the gun at all. He finds Hopper with the other gun and he uses that to fight the cavemen, however.

** Cara's aforementioned comment about the rope leading to a trap. It ''does'' lead to a trap (the titular Time Trap) but the rope was not placed there with that intention.
** Furby finds a more recent rope in a different entrance, identifies it as Hopper's and berates his companions for missing it. This rope was indeed placed by Hopper, but as a backup, and he used yet another entrance to the cave.
* ShooOutTheClowns: PluckyComicRelief Furby bails after seeing spiders in the cave's entrance, which means he doesn't enter with the others. [[spoiler:And when he tries to follow after waiting for days outside, he is killed.]]

** Also to ''Star Wars'' when they mention grabbing the astronaut's "lightsaber" thing.

%%* SmarterThanYouLook
%%* ThouShallNotKill
* TimeTravel: The main characters discover that since they have placed in a state of suspended animation, they are rapidly going forward into the future.
* TimeDilation: Time inside the cave is slower than outside. From a vertical opening, the party could see the sun rise and set, implying that a second inside is a day outside. [[spoiler:Or so they thought; examination of footage captured by Furby reveals that a second inside is about a ''year'' outside. It's even more extreme at the center of the cave, which seems to be as out of synch with the rest of the cave as the cave is with the rest of the world.]]
* TimeIsDangerous: Actually downplayed. Sure, the cave is [[spoiler:a guaranteed one-way trip to the far future, where everyone and everything you know is gone]], but, unlike some of the other examples of this trope, the time difference doesn't shred anyone -- just their rope.

* WhamLine: [[spoiler:"It's not just the sun; it's the ''seasons''. This thing is the sun shifting on the horizon." "Oh my god you're right - that's not just one revolution, it's hundreds!" "Those are entire years. It's the solstice. That's the only thing that makes sense."]]

* [[WhatHappenedToTheMouse What Happened to the Dog?]]: We never see what happened to Boss (Hopper's dog). [[spoiler:Given a dog's natural lifespan, he would have died in less than ten seconds (from Hopper's perspective) though we do not know if Boss died out in the wilderness, or was rescued and spent the rest of his life in a loving home.]]

%%* WhyDidItHaveToBeSnakes
* WouldHurtAChild: [[spoiler:The cavemen, who deliberately murder Furby, who is injured and helpless.]]
* YearOutsideHourInside: Exaggerated. For every second spent inside the cave, a day elapses outside, as is shown by the days and nights passing every second when looking out of the cave opening. [[spoiler:Or so we are initially led to believe. Furby's ApocalypticLog shows the gang that it's not days, but ''years'' that elapse as the seconds tick by in the cave.]]
* YouCantGoHomeAgain: [[spoiler:A second inside is about a year outside, so the party is over ten thousand years in the future at the end of the movie, with no way home.]]

%%* EvenEvilHaveLovedOnes

* ShooOutTheClowns: PluckyComedyRelief Furby bails after seeing spiders in the cave's entrance, which means he doesn't enter with the others. [[spoiler:And when he tries to follow after waiting for days outside, he is killed.]]

!!Minor unmarked spoilers below

* PopCulturalOsmosisFailure: Cara questions the plan to follow the hippies's abandoned rope by asking what if it's a trap, which Jackie and Taylor compare to ''The Goonies'' (in which a similar rope setup ''is'' a trap). The reference is lost on Furby, who has not watched ''The Goonies''.
%%* RedHerring

%%* ShooOutTheClowns

** To ''Film/TheGoonies'', given just before the party enters the cave.

** The massive space station that Cara sees outside the cave. It shows in no uncertain terms that millennia have passes and humanity have left the planet, [[spoiler:and it is where the main characters are taken to after their rescue.]]

** Jackie is the character introduced next after Hopper and seems set up for main character status, only to injure her ankle in the climbing down and practically slide into a tagalong for the rest.

* BigDamnHeroes: [[spoiler:Cara returns after some time outside and uses some future mechanical tentacle things to rescue the rest.]]

%%* ChekhovsGunman

* HeroicSacrifice: [[spoiler:Both Taylor and the explorer put their lives on the line to defend the rest of the gang from the cavemen. Fortunately, this is the point where we learn that the Fountain of Youth can bring people BackFromTheDead.]]
* ItsPersonal: It's revealed that the people Hopper was looking for weren't some random hippies, [[spoiler:but his parents and sister. Additionally, his parents went into the caves not for some adventure, but out of desperation to heal their terminally ill daughter.]]

* WhamShot: The revelation that the time dilation factor is [[spoiler: a year outside, second inside, meaning that they had been inside the cave for ten thousand years from the outside world's point of view.]]