This episode of 'magazine-film' series New Zealand Mirror educates its British audience about trampers, trout and trolling for big-game fish in Aotearoa. The first clip sees members of the Tararua Tramping Club hiking through mud, snow and water in the Tararua Ranges, laden with building supplies to construct a new hut. Heading up the island, the second clip captures Rotorua trout hatchery workers taking eggs from trout, and later releasing the tiny fish into waterways. The Bay of Islands stars in the final story, where a Yale University team studies big-game fish.