Andy and her twin brother Tony are four-wheeling in the woods near their
family cabin when they notice the sky has turned a sickly shade of
green. Moments later, the sky erupts into a raucous thunderstorm and
they're forced to take cover beneath an abandoned Ranger tower. When the
sky grows eerily calm, they quickly get back on their four-wheelers and
race home--only to find a massive funnel cloud blocking their way. The
twins dodge falling trees and debris in search of shelter only to face
an even bigger dilemma: is it safer to keep moving or hunker down
beneath less than ideal cover?