This documentary tells the epic story of helicopter deer culling in the Southern Alps. Introduced deer had become destructive environmental pests; in the 60s entrepreneurs shifted culling from ‘man alone’ to machine-driven hunting, as deer were shot then later captured alive from helicopters. Deer Wars — Top Gun in choppers, over the beech forest — revisits the heady ‘gold rush’ days, when heli-cowboys calculated often fatal pay-offs between risk and reward. It features interviews with survivors and fearsome footage of men hanging from helicopters and leaping onto deer.