History WesternAnimation / Ben10AlienForce

* SawItInAMovieOnce: Julie's IKnowYouAreInThereSomewhereFight with [[spoiler: Ship, who had been [[MindControl mind controlled]] by the Forever Knights]]. She tells Ben "You're not the only one who saw 'Brain Stealers From Outer Space' when he asks how she knew to do that.

* RealityEnsues: When Ben's parents find out about his heroics and try to stop it by grounding him, he does so without complaint. However when the current threat becomes to much for him to ignore, he turns into humungousaur and leaves the house over his parents protests. They might be his parents, but Ben is in control of the most powerful device in the universe and if he doesn't want to listen to them they don't have the power to stop him.

*** [[spoiler:A lot of these retcons about Kevin (except maybe his step-dad) were in fact retconned as untrue in ''Omniverse''. Kevin didn't have a father who was a Plumber and that was just a fake memory implanted in him and Max inbetween the original series and AF by a group called the Rooters so that Kevin would get close to Ben and Max would look after him. He's also not an Alien hybrid, and ''Osmosian'' is just a term with someone with a special ability they were born with like Kevin's absorption (though everyone else who also fits this description on the show is still labeled as a mutant for whatever reason).]]

Season 3'involving t is a bit more loose, involving[[ArchEnemy Vilgax]]'s attempts to finally get his revenge on Ben. This series' GrandFinale set up ''Alien Force'''s own sequel series, ''WesternAnimation/Ben10UltimateAlien''.

Season 3's Arc Plot, is [[ArchEnemy Vilgax]]'s attempts to finally get his revenge on Ben. This series' GrandFinale set up ''Alien Force'''s own sequel series, ''WesternAnimation/Ben10UltimateAlien''.

* ArtEvolution: This show sports a noticably different visual style than the classic series, with more proportioned head sizing, simplified hair, some slightly morr streamlined angular features, and strangely enough, pants are less baggy.

* Foreshadowing: Max warns Devin against absorbing energy to stop Ragnarok, hinting at how the following season would reveal that energy absorbian has an adverse effect on Osmosians.
* GadgeteerGenius: Cooper

** ''The Secret of Chromastone'' brings back Tetrax Shard in the ''Resolute'' and the episode revolves around him atoning for giving Vilgax the means to destroy Petropia as first established in ''Secrets of the Omnitrix''.Vilgax's old battleship appears in Tetrax's flashback, although Vilgax has a differnt design. Once again,as in ''Side Effects'', Ben's aliens are affected by him having a cold.

** "Time Heals" starts off with Gwen back in her old Lucky Girl costume, "acquiring" the Archamada Book Of Spells.

** It is stated in the first episode that any injuries or wounds Ben suffers while he in alien mode will carry back over to his human form. Meaning he will be in genuine danger while fighting in this series. This is never brought up again, nor is Ben ever any worse for the wear after a tough battle.

** When discusing SevenSeven, Ben brings up SixSix.

** ''UnderCover'' features the return of Cooper Daniels and Ben references his involvement in ''Ben 10 vs the Negative 10.'' Los Soladad also reappears from from ''Paradox'' as the DNAlien base.

** ''Voided'' has a ton of them. The Null Void and Null Guardians return from ''Back with a Vengence'', with Ben referencing his involuntary visit there. Dr Animo makes his return as D'Void, recognizing Ben and Grandpa Max from their past clashes. Even Grandpa Max's bizare tase in cooking is given a nod.

** ''UnderCover'' fetures the return of Cooper Daniels and Ben refernces his involment in ''Ben 10 vs the Negative 10.'' Los Soladad also reappears from from ''Paradox'' as the DNAlien base.

* RememberTheNewGuy: Ken, Gwen's older brother who was never mentioned or even suggested she even had any siblings up to that only episode he has appeared in. Although he was referenced in the [[AllThereInTheManuel Pop-Up Trivia for the Original Series episode "Lucky Girl"]], suggesting he always existed in the series bible and just never came for some reason. The lack of any follow up episodes dosn't help though.

** ''UnderCover'' fetures the return of Cooper Daniels and Ben refernces his involment in ''Ben 10 vs the Negattive 10.'' Los Soladad also reappears from from ''Paradox'' as the DNAlien base.

** Ben encounters other aliens and/or people which bear the same forms as his [[WesternAnimation/{{Ben10}} younger self]] was able to pull from the Omnitrix at the time.
** Ben's soccer jersey is the same shirt design he wore during the [[WesternAnimation/Ben10 original series]].
** Several villains introduced in the original series such as Vulkanus (though he appeared in an earlier episode) and Charmcaster have returned in Season 3, the latter having mentions to Ben and Gwen's encounters.

* RememberTheNewGuy: Ken, Gwen's older brother who was never mentioned or even suggested she even had any siblings up to that only episode he has appeared in. After that he is never mentioned again. Suggesting he was created solely to give Max a reason to come out of hiding.

** In "What Are Little Girls Made Of?", it was stated all magic is really reality-warping scifi-powers caused by aliens, though they've since backtracked somewhat on this and Gwen even still has Charmcaster's spellbook and now the Archamada Book Of Spells. [=McDuffie=] also said Hex and Charmcaster are human practitioners of magic, though it's since been revealed that Hex and Charmcaster themselves are from another dimension.

** The Plumbers themselves: In the original series, they were a defunct TheMenInBlack-type organization, and all human (and many were ''very'' anti-alien) with [[GreenSkinnedSpaceBabe Xylene]] only being an honorary member. In AF, they're now a still-active interstellar police force, and pretty much all of the known human members married aliens. ***Thankfully the discrepancy was fixed by WordOfGod explaining there were ''two'' separate groups of Plumbers, the Earth-based MenInBlack of the Original Series and the SpacePolice of the sequels, with the remnants of the Earth group merged into the larger organization at some point before the start of WesternAnimation/Ben10AlienForce

** The Plumbers themselves: In the original series, they were a defunct TheMenInBlack-type organization, and all human (and many were ''very'' anti-alien) with [[GreenSkinnedSpaceBabe Xylene]] only being an honorary member. In AF, they're now a still-active interstellar police force, and pretty much all of the known human members married aliens.

** Averted due to ''Omniverse'' revealing that the Ben 10,000 future from the Original Series is the canonical future to the Main Timeline (i.e. the timeline of Main!Ben/Ben prime) once again.

* BadassBoast: In ''Con of Rath'', Ben (as Rath, the Appoplexian) makes such a boast to Jarret, leader of the Pantophage.
--> "[[CatchPhrase Lemme tell ya somethin']], Jarret of Pantophage! I just jumped down your throat! And if you start a war with Luodans, I'll do it again! Only next time, I'll knit your intestines into a sweater!"

''Ben 10: Alien Force'' was a SequelSeries to ''WesternAnimation/Ben10''. Management was taken over from Man of Action by Glen Murakami and Creator/DwayneMcDuffie of the ''WesternAnimation/JusticeLeague'' fame.

* AntiSmotherLoveTalk: In one episode, Ben's parents find out that their son has been acting as a superhero. They are horrified and attempt to prevent him from returning to the field of battle, even going so far as to ground him and take away his technology so he can't be involved with the battle even remotely. They even get ''Gwen'' grounded after Ben caves and tells them she's also involved. Ben initially sticks to their rules (albeit with some use of LoopholeAbuse), but when Kevin is in trouble during a battle, he tells his parents that he has to do this -- after all, they taught him to do the right thing. When he gets back, they agree to let him continue with the superheroics, but caution him to please be careful.

* AntiSmotherLoveTalk: In one episode, Ben's parents find out that their son has been acting as a superhero. They are horrified and attempt to prevent him from returning to the field of battle, even going so far as to ground him and take away his technology so he can't be involved with the battle even remotely. Ben initially sticks to their rules (albeit with some use of LoopholeAbuse), but when Kevin is in trouble during a battle, he tells his parents that he has to do this -- after all, they taught him to do the right thing. When he gets back, they agree to let him continue with the superheroics, but caution him to please be careful.

* ShipSinking: Most noticeably the show's infamous KissingCousins. Unfortunately, it didn't quite work out the way the writers hoped it would due to...
** ShipsThatPassInTheNight: Gwen and Kevin fall in love pretty damn quickly for two characters who barely had any interaction in the original series, and when they did, it wasn't positive.

* ThoseTwoBadGuys: The Vreedle Brothers.

* GettingCrapPastTheRadar: Kevin's powers might be related to absorbing the properties of surfaces he touches but he's still Gwen's boyfriend...
-->'''Gwen:''' Find something to touch!
-->{{Beat}}
-->'''Kevin:''' (Looks to the sword he's handling) Oh, right!
** This exchange from “Birds of a Feather”.
-->'''Kevin:''' What’re we supposed to do with the extra arms [on their space suits]?
-->'''Ben:''' You never used to have a problem figuring out what to do with your arms. That’s what the girls say.
-->'''Kevin:''' [[ComicallyMissingThePoint Which girls?]]

* AbortedArc: The Forever Knights going after the planet of [[OurDragonsAreDifferent alien dragons.]]

* ComingOfAgeStory: The first two seasons are about Ben and Gwen [[MyFriendsAndZoidberg (and Kevin)]] becoming more accomplished superheroes with [[TimeSkip 5 more years]] [[ExperiencedProtagonist of experience under their belts]]. For Ben especially, he does his best to fill the shoes that Grandpa Max left behind, first when the latter disappeared, the second when [[spoiler:the latter was exiled to the Null Void]].