Three orphaned boys - O'Malley, Rossi and Moir - become blood brothers. When they grow up, they plot revenge on the crooks who got away with shooting O'Malley's father. The crooks are doing very nicely importing heroin and laundering money. The boys begin by killing one of the crooks, stealing his indentification and cleaning out the guy's Swiss bank account. But their revenge does not stop here... And the American end of the operation is getting very curious.

Set in and around the fictional town of Kapua in 1948, Ngāti is the story of a Māori community. The film comprises three narrative threads: a boy, Ropata, is dying of leukaemia; the return of a young Australian doctor, Greg, and his discovery that he has Māori heritage; and the fight to keep the local freezing works open.

A scientist in New Zealand has a secret lab where experiments are performed on humans. When he is assassinated, opposing forces rush to his hideaway to suppress or expose his secrets.