- 1
Part 1
Across the world an unprecedented Category 6 storm descends. Violent winds, hurricane-level pressure and unprecedented "tornado alleys" develop across two continents. For years, scientists have been expounding theories - and warnings - of global-warming effects. It's disaster Code Yellow, as the "storm on steroids" is only just beginning to rend the earth.
- 2
Part 2
The warming effect is creating new regions of extreme weather, but something else is triggering it; something that when combined with record-breaking heat waves creates explosions in the sky. With time running out, discredited scientist Faith Clavell, teams up with storm chaser Tornado Tommy and Judith to discover the trigger.