The film follows the journey of five men from different backgrounds as they enlist in their National Service: Malcolm, a nerdy and sheltered individual; Johari, a laid-back hipster Malay man; Krishna, a heroic and loving Indian lover; Ah Beng, a delinquent with a gangster-like demeanor; and Kenny, an effeminate boy interested in women's lifestyle.

Before enlisting, Malcolm interacts with a shady character named Mr. X, who sells him a guidebook on playing truant in the army.

During combat training, they meet their tough instructor, Sergeant Wendy Chung, who unknowingly captures Ah Beng's heart.

The platoon goes on a field camp, where Kenny and Malcolm try to make their campsite more comfortable but end up being punished with guard duty by Sergeant Monteiro.

After Krishna is discharged, he returns to an empty bunk, only to find out that the platoon has been given time off for outstanding performance.

The four surprise Krishna, but tension arises when Kenny accuses Malcolm of witnessing Lathi flirting with 2LT Heng.

Kenny enters boutique sales and aspires to become a dance choreographer, while Ah Beng becomes a cellphone manager and strikes the lottery, buying a diamond ring for SGT Wendy Chung.

With a budget of S$700,000, Army Daze was one of the most profitable Singaporean films during that time, earning about S$1,600,000 at the local box office.