When the "generation gap" turns into rivalry or all-out war between children and adults.
- This was a pretty common trope in children's advertising during the early to mid-1990s (examples are Frosted Mini Wheats, Hi-C, and even one anti-smoking PSA from 1992/93).
- Battle Royale 2 goes down this road. It also occurred in the backstory of the original.
- Children of the Corn film series is an endless parade of cultist children killing adults.
- While it's only two adults and two children, Little Sweetheart is a prime example. Two bank robber criminals vs. two blackmailing, stalking, thieving little girls.
- The 1968 film Wild in the Streets has the voting age lowered to 14; the 24-year-old rock star subsequently elected president then has everyone over 30 put in re-education camps. The film ends on a punchline suggesting a Full-Circle Revolution when the young president pisses off a couple of 7-year-olds.
- "The Grandfathers' War", one of Murray Leinster's Med Ship stories, featured a war between generations (although the younger was of the age of maturity).
- Stanley Kiesel's novels The War Between The Pitiful Teachers And The Splendid Kids and Skinny Malinky Leads the War for Kidness take this trope quite literally.
- In the Doctor Who New Adventures novel No Future by Paul Cornell, the Doctor and Benny visit the Mediasphere, a sort of 1970s British collective unconscious comprising TV of the period warped by the anxieties of the age. At one point they see a vicious fight between teenagers based on The Tomorrow People (1973) and pensioners based on Til Death Do Us Part.
- It's certainly been the premise of a couple of game shows over the years:
- The Adventures of Pete & Pete had the International Adult Conspiracy.
- Two Star Trek: The Original Series episodes about conflict/war between kids and adults: "Miri" and "And the Children Shall Lead".
- A majority of Kamen Rider Gaim is spent focusing on the conflict between the teenage Beat Rider dance crews and the adults in the Yggdrasil Corporation; however, the sides get skewered as the series goes on. Most of the teens have grown up ideals (fighting for what is right, compassion for others) while the adults generally have childish goals (half of them wanna be an all-powerful being); though exceptions to both groups, with selfish teens and noble adults, do exist. The conflict between Sid and Kouta perfectly highlights this, as Sid's banters often involve how kids are stupid and need to be ruled over by their adult superiors.
- Danganronpa Another Episode: Ultra Despair Girls has this as the center of its conflict. The Warriors of Hope, a group of kids who hate adults due to their Abusive Parents, attempt to stage a revolution in Towa City. This means slaughtering the entire adult populace of the city in order to create a peaceful paradise for children. Komaru gets caught up in the middle of it all. Although it turns out to just have been a fallacy by Monaca Towa, who didn't really care about a children's paradise. She just wanted to reignite the Tragedy by starting a war between adults and children, and also to drive Komaru into despair with the news that the children killed her parents.
- This is the entire premise of Codename: Kids Next Door, with the KND fighting against adult tyranny.
- The Musical Episode of The Fairly OddParents, "School's Out", has this as a major song, as, how do you say, adults ruin everything.
- An episode of The Simpsons had the adults enforcing a curfew, and the kids rebelling against it by broadcasting all the adults' dirty secrets. Subverted in that, during the grand finale song-and-dance number, the elderly got in on the fight and won, forcing everyone under 50 to adhere to the curfew, allowing them free roam of the streets. The irony to all this is that the mess started because a few adults (Namely Homer, Barney, Lenny and Carl) went on a drunken bender after seeing the hometown baseball team win the championship, trashing the school in the process. And thus were never found out, so it was instantly assumed kids were the culprits.