Based on a popular Hong Kong {{manhua}} called ''Teddy Boy'', ''Young and Dangerous'' is a series of live-action films detailing the various underground societies of the city. The films primarily contributed to the image of the triads and was condemned by circles as over-glorifying these secret societies. Regardless, the popularity of the films led to a total of 10 sequels and {{spinoff}}s. The films also became a foothold for establishing its acting casts into mainstream Hong Kong actors.

The main series and spinoffs (in order of release) are as follows:

* '''Young and Dangerous''' (1995)
** The series begins with Chan Ho Nam (Ekin Cheng), "Chicken" Chiu (Jordan Chan), Tai Tin Yee (Michael Tse), Bao Pei (Jerry Lam) and his brother Chou Pei (Jason Chu) joining the "Hung Hing" society in their teens, [[TwentyMinutesIntoTheFuture quickly leading up to their young adult years]]. The plot of the story involves internal struggling of control within Hung Hing, where main antagonist "Ugly Kwan" (Francis Ng) successfully yanks the position of Chairman away and takes it for himself.
* '''Young and Dangerous 2''' (1996)
** The story in the first sequel is told in two parts: the first deals with Chicken and his self-imposed exile to Taiwan during the previous film; the second involves the Hung Hing society attempting to ally with Chicken's Taiwanese triad "San Luen". At the same time, the branch leadership for Hong Kong's Causeway Bay is underway, with Ho Nam the top candidate, but a rivalry ensues between him and fellow Hung Hing member "Tai Fei" (Anthony Wong).
* '''Young and Dangerous 3''' (1996)
** For the first time in the series, a rival triad in Hong Kong, "Tung Sing", begins usurping Hung Hing influence in the city. To that end, Tung Sing member "Crow" (Roy Cheung) frames Ho Nam for the murder of Hung Hing Chairman Chiang Tin Sung (Simon Yam). Meanwhile, Chicken finds a new love interest in Shuk Fan "Wasabi" (Karen Mok), daughter of the comedic, BadassPreacher Father "[[NamesToRunAwayFromReallyFast Lethal]] [[RedBaron Weapon]]" Lam.
* '''Once Upon a Time in Triad Society''' (1996)
** A semi-spinoff of the franchise, the story tells of Ugly Kwan's rise and fall in the Hong Kong triads. While Francis Ng reprises his role as Kwan and Father Lam makes a [[TheCameo cameo appearance]], the plot does not necessarily [[ContinuitySnarl mesh well with canon events]].
* '''Young and Dangerous 4''' (1997)
** Also called ''Young and Dangerous 97'', when branch leadership is open for the Tuen Mun district, Chicken begins his campaign for it, but fellow Hung Hing member "Barbarian" also wants it. To that end, he resorts to ruthless Tung Sing member Yiu Yeung (Roy Cheung) for help in his candidacy. With Chairman Chiang Tin Sung dead, the Hung Hing society decides to elect Chiang's younger brother Chiang Tin Yeung (Alex Man). This movie brings previously established characters who appear on-screen for the first time: Ben Hon (Wan Yeung Ming), "Sister 13" (Sandra Ng) and "Prince".
* '''Young and Dangerous 5''' (1998)
** Also called ''Young and Dangerous 98'', the rival Tung Sing society returns to cause trouble again for Hung Hing, in the form of new leader Szeto Ho Nam (Mark Cheng). The backdrop for the film involves [[RealLifeWritesThePlot the transfer of Hong Kong sovereignty back to China]], with the focus being Ho Nam and his friends maturing from "boys" into "men", as they develop more formal, business-like dealings.
* '''Portland Street Blues''' (1998)
** The first official SpinOff, ''Portland Street Blues'' provides a contrast to its predecessors by focusing on Sister 13 and her facing the trials and tribulations of rising to become Hung Hing's branch leader of Portland Street in Mong Kok, alongside her willingness to forgo a heterosexual relationship. Set sometime before ''Young and Dangerous 5'', the film also gives more details and insights on the rival Tung Sing society and the [[VitriolicBestBuds mutual friendship between Sister 13 and Ben Hon]].
* '''Young and Dangerous: The Prequel''' (1998)
** Showcasing the earlier years of Ho Nam (Nicholas Tse) and Chicken (Sam Lee), this prequel tells of their earlier years and willingness to follow Hung Hing's "Uncle Bee".
* '''The Legendary Tai Fei''' (1999)
** In this SpinOff, after Tai Fei obtains branch leadership status of the North Point district in ''Young and Dangerous 4'', he discovers he has a son. Worse yet, his son is a member of the hated Tung Sing triad, now dealing in narcotics.
* '''Those Were the Days...''' (2000)
** This semi-prequel follows the life of Chicken before he joined the Hung Hing society. The film co-stars Gigi Leung as Chicken's childhood friend.
* '''Born to be King''' (2000)
** Canonically the last installment to the series, ''Born to be King'', or better known as ''Young and Dangerous 6'', begins with Chicken set to marry Nanako Kusaraki, [[MafiaPrincess the daughter of Japanese yakuza boss]] Isako Kusaraki (Sonny Chiba), to tie relationships between the Taiwanese San Luen triad and Kurasaki's Yamada Clan. When Chicken is set up and framed again for murder, he seeks his old friends from Hung Hing to clear his name. Like ''Young and Dangerous 5'', [[RealLifeWritesThePlot the 2000 Taiwan presidential elections]] serves as the backdrop for the film.

----
Tropes associated with ''Young and Dangerous'' are:

* ActionGirl - Wasabi briefly in ''Y&D3''
* ActorAllusion - This isn't the first time Simon Yam is [[TriadElection head of a Hong Kong triad organization]].
* AmbitionIsEvil
* AmnesiacDissonance - What Smartie had to go through in ''Y&D3''
* AnyoneCanDie
* ArcWords - "The government has its laws; the society has its own."
* ArrangedMarriage - The kicker to ''Born to be King''
* AxCrazy - Ugly Kwan and Crow; Yiu Yeung might count, thanks to his penchant of listening to classical music while having people thrown off of buildings.
* BadassPreacher - Father "Lethal Weapon" Lam, who, aside from being an ex-triad member, kicks Ugly Kwan, the most powerful person in Hung Hing at the time, in the face when he doesn't admit to causing Uncle Bee's death. Lam totally gets away with it.
* BelligerentSexualTension - Chicken and Wasabi, Ho Nam and Mei Ling (at first)
* BenevolentBoss, ReasonableAuthorityFigure - Both the Chiang siblings: the elder was willing to relinquish his position as Chairman to Ugly Kwan without confrontation (likely because he didn't want a CivilWar among Hung Hing to spill out onto the streets) and was willing to split the losses from money stolen with Ho Nam during his candidacy for Causeway Bay; the younger, although somewhat reluctant to replace his brother as leader of the society, returned because he felt a sense of filial piety to uphold.
** Not to mention both men actually reward those working for them.
** Lui Gong, San Luen's leader, in ''Y&D2'' might count: while it seems doubtful he would allow an exiled Chicken to join his society, Chicken proved his worth by assassinating a rival politician, earning Lui Gong's trust, even promoting Chicken to branch leader. [[spoiler: Subverted later when he reveals he was simply using Chicken as a bridge between Hung Hing and San Luen to seize control of Macau's gambling spots away from Hung Hing]].
* BilingualBonus - Beginning with ''Y&D2'', spoken languages include Cantonese, Mandarin and Taiwanese. ''Born to be King'' featured no less than 5 languages.
** {{Gratuitous Foreign Language}}s - Dutch in ''Y&D3'', Thai in ''Y&D4'' and Japanese in ''Born to be King''
* BitchInSheepsClothing - [[spoiler: Ting Yiu]] in ''Y&D2''
* ButchLesbian - Sister 13, ''[[ZigZaggingTrope somewhat]]''
** Given the implication in ''Born to be King'' [[spoiler: she and Ben Hon got married some time before the film]], this might a subversion.
* {{Callback}} - See ArcWords
* CigarChomper - Chiang Tin Yeung ''all the time''
* ClusterFBomb - [[ChineseDialectsAndAccents Cantonese]], after all, is known for its colorful swear words.
** Wasabi drops a crapton of F-bombs on Chicken in ''Y&D3'' after their first CrashIntoHello, but in SurprisinglyGoodEnglish rather than Cantonese.
* CoolAndUnusualPunishment - Smartie carjacks Ho Nam's [=MR2=], so he and his buddies kidnap and take her to the mountains late in the night to punish her. She's given a choice: either let them rape her or finish eating a couple dozen barbeque pork buns. She chooses the latter.
* DamnItFeelsGoodToBeAGangster - Ho Nam and his friends in the first film, until [[spoiler:Chou Pei gets KilledOffForReal]]. In ''Y&D4'', while masquerading as a high school substitute teacher, Ho Name calls out on the students for overglorifying this lifestyle.
* DarkerAndEdgier - ''Y&D3'' begins ascending the death toll among recurring characters; later films make it clear not even the main cast is entirely immune to harm.
* DreamTeam - In-universe example: Isako proposes an alliance between the financially powerful Hung Hing, San Luen and the Yamada clan. It's implied in the ending of ''Born to be King'' that all three societies agree to this.
* DrugsAreBad - In contrast to Tung Sing, it's Hung Hing's policy they do not handle the flow of drugs in the underground for Hong Kong. The exception is when Ugly Kwan was Chairman, but he was notably corrupt.
* DualWielding - Wasabi handles two vegetable cleavers in her brief action stint in ''Y&D3''.
* ExtremityExtremist - Prince, who's a kickboxer
* FakeNationality - Shu Qi from Taiwan portrays Malaysian Mei Ling in ''Y&D5''.
** Roy Cheung plays the Japanese Akira Kurosaki in ''Born to be King'', but this becomes a subversion right from his introduction: he states he's actually Chinese, but was adopted by Isako because he didn't have any sons.
* FieldPromotion - Ho Nam goes from Uncle Bee's leading enforcer to branch leader of Wan Chai to branch leader of Causeway Bay to the most trusted lieutenant of Chairman Chiang by ''Y&D5'', all in the span of ''3 years''. [[spoiler: By ''Born to be King'', Chiang steps down to retire and promotes Ho Nam to '''leader of the Hung Hing society''']].
** Similarly, Chicken: another of Bee's top enforcers to branch leader of one of San Luen's districts [[spoiler: to branch leader of Tuen Mun]] in the same amount of time as Ho Nam. In ''Born to be King'', he marries Nanako, with implications from Isako that after he retires, Chicken will be leader of the Yamada clan.
* FirstLove - Smartie for Ho Nam, Ting Yiu for Chicken
** SecondLove - Mei Ling for Ho Nam, [[spoiler: but winds up becoming a {{Deconstruction}}, as Ho Nam hasn't learned to let go of Smartie, not even a look-a-like of her in ''Born to be King''. Mei Ling was simply there when he needed someone]].
* FiveManBand
** TheHero - Ho Nam
** TheLancer - Chicken
** TheSmartGuy - Bao Pei
** TheBigGuy - Tai Tin Yee and Chou Pei; succeeded by Big Head
** TheChick - Shared between Banana and Wasabi
** TeamDad - Father Lam
* GenkiGirl - Mei Ling
* GoodSmokingEvilSmoking - Anyone who's part of the triad smokes; no exceptions. Averted from ''Y&D5'' onwards when Ho Nam decides to quit.
* HannibalLecture
* HypocriticalHumor - In ''Y&D5'', Chairman Chiang wonders why Ho Nam isn't smoking anymore. Ho Nam says he quit; Chiang says that's a good thing, then offers Ho Nam a cigar.
* INeverSaidItWasPoison - When Barbarian's ousted for sabotaging Chicken's campaign during the election debate in ''Y&D4'', he denies the claims and spills he had nothing to do with working alongside Yiu Yeung. Naturally, no one else in Hung Hing, aside from [[spoiler: "Fat Lai", whom Barbarian was colloborating with]], knew he had been under Tung Sing's payroll.
* IOweYouMyLife - Smartie for Ho Nam, after he bails her out from starring in Ugly Kwan's pornography company, despite having punished her earlier for stealing his car.
* InfantImmortality - Horribly averted in the first film when Ugly Kwan has Uncle Bee and his entire family killed.
* InSeriesNickname - "Chicken", [[MeaningfulName because he]] ReallyGetsAround.
** Shuk Fan coins herself "Wasabi"; as she states to Chicken, she can burn you.
* IronicEcho
* JerkAss - Fat Lai in ''Y&D4''
* JerkWithAHeartOfGold - Ho Nam in the first film, Tai Fei
* KilledOffForReal - [[spoiler: Chou Pei]], Uncle Bee, Chiang Tin Sung, [[spoiler: Smartie]], [[spoiler: Tai Tin Yee, Banana and Blackie]]
* ManipulativeBastard - [[spoiler: Lui Gong and Ting Yiu]] in ''Y&D2'' and [[spoiler: Lui Gong's son, Lui Fu Kwan]] in ''Born to be King''
* MeaningfulName - Sister 13 got her InSeriesNickname because on the day she was born, her father won multiple rounds with a [[{{Mahjong}} Thirteen Terminals]] hand.
* TheMole - [[spoiler: Tai Fei]] in ''Y&D2''
* MercyKill - Why [[spoiler:Chicken killed Ting Yiu]] in ''Y&D2'', the implication that punishment for [[spoiler:having killed Liu Gong and framed Chicken, fooling all of San Luen]], is AFateWorseThanDeath.
* NamesTheSame - Chan Ho Nam and Szeto Ho Nam
* {{Nepotism}} - Subverted: Lui Gong's son, Lui Fu Kwan, returns to Taiwan from the United States in ''Born to be King''. The entire San Luen triad believes he will succeed his father as head of the society, but Fu Kwan doesn't want the position, believe he's not fit to lead. [[spoiler: Played straight later when it's revealed he's behind the conspiracy of framing Chicken and plans to unite all of Taiwan's triads into one conglomerate, with the help of the new government. Averted at the climax of the film for having played with the IdiotBall too much]].
* NeverBringAKnifeToAFistFight - Yiu Yeung pulls out a hidden dagger during his last man standing bout with Ho Nam in ''Y&D4''. He gets the short end of it when Fat Lai intervenes and kills him for pulling out a weapon in the first place.
* PlayingAgainstType - Ng Man Tat, who regularly plays the comedic, ButtMonkey {{Sidekick}} to Creator/StephenChow's characters, appears in ''Portland Street Blues'' as Sister 13's tragic, gambling addict of a father.
* PrecisionFStrike
* SpeechImpediment - Smartie, except during her AmnesiacDissonance period
* SuspiciouslySimilarSubstitute - Banana for [[spoiler: Chou Pei, after he was KilledOffForReal]]. Naturally used as an excuse for Jason Chu to return, since he portrays both roles, but in-universe, it's because [[spoiler: Banana looks exactly like Chou Pei]].
* TheTriadsAndTheTongs
* TitleDrop
* TooDumbToLive
* TrueCompanions - [[spoiler: {{Deconstructed}} in ''Y&D4''; Chou Pei unknowingly gave up Tai Tin Yee's location after the latter unsuccessfully tried to assassinate Barbarian to help Chicken's campaign for the branch leadership. Barbarian relays the info to Yiu Yeung, who orders Tin Yee to his death. Since Ho Nam, a well-respected branch leader in Hung Hing, can't allow to be lenient among the society, let alone his own friends, has Chou Pei beaten to an inch of his life]].
* VillainousBreakdown
* VitriolicBestBuds - Ben Hon and Sister 13; [[spoiler: ''Born to be King'', however, implies they got married]].
* WhatHappenedToTheMouse - Wondering what happened to Wasabi and why Chicken's getting married to [[MafiaPrincess Nanako]], when he proposed to Wasabi at the end of ''Y&D4''? You'll need to watch ''Those Were The Days...''
----