Magnetic Storm

S5 E3: It bursts from the sun with the power of ten thousand nuclear weapons...and when it hits our planet, it could create the largest disaster in recorded history. A magnetic storm from the sun could wipe out electrical power, television, radio, military communication, and nearly every piece of electronics in the Northern Hemisphere. It's a "Solar Katrina" - a planet-wide "hurricane" of agnetic forces that scramble all 21st Century technology...possibly for good. What causes this magnetic superstorm? Why is magnetism so powerful - and yet so poorly understood? And is there anything we can do to prevent the Magnetic Storm?