Running late to his daughter's ballet recital due to his business flight being grounded in Houston instead of Dallas, Clayton has to make a sudden change of plans when the sirens and emergency alerts warn of an imminent threat of a nuclear ballistic missile strike near Dallas. His only hope is to seek shelter in a storm shelter on an old farm with a grumpy old Vietnam vet and an old CB radio as their only form of communication beyond the shelter.—Stephen Batts