Polar bears are deemed by many to be the most charismatic and elusive bears of all - and now, a new generation of specially-designed spycams film polar bears closer than they ever have before. This incredible story charts the challenges facing two polar bear mothers with cubs as they face their first summer. As they emerge from their den on a remote Norwegian island, the families are followed by "blizzard-cam", "snowball-cam" and "iceberg-cam." Each camouflaged camera is able to capture its subject in remarkable detail, whether roving across shifting sea ice, negotiating glaciers, swimming or catching prey. For the first time, get up close and personal with one of the most captivating creatures on our planet.