Forty years ago a brandy-soaked snap election set in motion a seismic chain of events in New Zealand politics. Across a series of extraordinary scenes, Aotearoa lurches from crisis to crisis, with strongman prime minister Rob Muldoon replaced by a Labour Party led by the charismatic David Lange and a finance minister, Roger Douglas, determined to shift the country from the developed world’s most regulated economy to the most embracing of the free market.  An economic revolution comes alongside a battle with the US over nukes on the global stage, a terrorist attack in Auckland harbour, and...