Yet another battalion departs for Mozambique, to fight in a seemingly endless war. It includes a reservist 2nd lieutenant and a private who barely know each other. Having left behind his fiancée, a medical student, the officer indulges in transient passions and reckless behavior. The private, married and with a daughter, struggles to survive in a strange environment, among hostile animals and plants, mined paths, ambushes, scorching sun and blinding fog. Back in Portugal, the officer's fiancée and the private's wife survive amidst fear, prejudice, and misery, guided by their natural strength and by love.