The Sudden Fall — Blaze Eastwood

Ross and his nine-year-old son are on their way home when the train suddenly stops moving. Trapped in the pitch black dark subway tunnel, the passengers soon realize they are unable to get a cellphone signal. As far they know, the power outage appears to be widespread. Needless to say, the airports and train stations are forced to shut down.
Ross and Porter need to get back to the rest of their family. But how can they get home when their house is over two-thousand miles away? How will they purchase supplies after the economy completely collapses? How can they barter for food and water when so many of the survivors are hostile towards them?