There are familiar characters returning to active duty. Ken Chow, the spoilt rich kid, tries to find his way out of NS. Aloysius, as known as Wayang King, his over-enthusiasm creates more problems for his cabin mates. Lobang, the street-smart wheeler-dealer, is out to make a quick buck off his cabin mates. Joining them is new face Hei-long, an aggressive gang leader who prefers to talk with his fists instead of his mouth. Together, this ragtag band of misfits must somehow survive 40 weeks of training in hell. Do they have what it takes to become one of Singapore’s most fearsome military units, the frogmen?