A deadly airborne virus finds its way into the USA and starts killing off people at an epidemic rate. Col. Sam Daniels\' job is to stop the virus spreading from a small town, which must be quarantined, and to prevent an over reaction by the White House.

A deadly airborne virus finds its way into the USA and starts killing off people at an epidemic rate. Col. Sam Daniels\' job is to stop the virus spreading from a small town, which must be quarantined, and to prevent an over reaction by the White House.