 The plot is centered on a colossal blast of heavily chilled mesosphere air spreading over the Earth after a solar eclipse, which (combined with the effects of environmental pollution), causes a hole to open in the ozone layer.The catastrophic event threatens to engulf the entire world in ice.As Hobart, Tasmania, is hit by the cold front with temperatures of below −70°C, causing people to die almost instantaneously, physicist Jack Tate (Michael Shanks) tries to find a solution while protecting his family.