The story of four ex-cons struggling to reintegrate into society – Tiger is a former gangster who took the rap for his boss Blackie; Mad Dog is a serial criminal who has apparently been convicted of every single offence in the Penal Code except for 'unnatural sex'; Panther was betrayed by his partner during a robbery attempt; while Jian Ren was a soon-to-be groom convicted of sex with an underage prostitute during his bachelor's night party.

WHAT IF, in the unforeseen future, when there are not enough boys in Singapore? If Girls have to serve National Service also, what will happen? The story will focus on the first batch of female recruits, a bunch of Gen Z teens and youngsters with different backgrounds and education. As they trained under the fierce leadership of Sergeant Chow and Lieutenant Roxanne, they find themselves being pushed to the limit of their potential. Together, they overcome hardship and initial resistance to serve NS and discover newfound abilities, using it to solve and mend relationships in their personal life as well.

Lin Yu is a boy who is constantly surrounded by misfortune and is always one step behind others. Since primary school, he has a crush on Zhang Qingqing, and continues to pin for her throughout his life. Will Lin Yu, the destined "unlucky" boy, be able to change his fate?

The film's plot centers on rival lion dance troupes in Singapore -- a liberal-looking faction of a traditional troupe, Tiger Crane (led by Wang Wei Liang), breaks away from it to form a new one called Storm Riders (led by Tosh Zhang), which advocates a new style of lion dance with more modern influences of hip hop dance and more flashy acrobatics. Meanwhile, the male stars of the show clash with a third rival troupe called Black Hawk, competing in wushu, love triangles and of course, lion dance. Five of the well-loved "Ah Boys To Men" cast headline the film, joined by 23 "unknowns".

陆地兵营的Ken和罗邦改为到蛙人海军处报到，以及他们在训练时遇上了香港移民过来的黑社会石黑龙（黄恺杰饰）以及人称天下第二的蛙人教官（张智扬饰）所发生的故事。

A privileged and impulsive young man attempts to escape mandatory service in his nation's army so he could study abroad with his girlfriend.

The fourth addition to the franchise sees the return of the army boys including Sergeant Ong, Lobang, Ken Chow and Aloysius, joined by a new female officer, as they are called back for in-camp training under the Armoured Formation of the Singapore Armed Forces. Hilarious situations happen when they are back training together and their military roles reversed. Their brotherhood is also put to the test when new enemy threats arise.