A twice-divorced mother of three who sees an injustice, takes on the bad guy and wins -- with a little help from her push-up bra. Erin goes to work for an attorney and comes across medical records describing illnesses clustered in one nearby town. She starts investigating and soon exposes a monumental cover-up.

As an epidemic of a lethal airborne virus - that kills within days - rapidly grows, the worldwide medical community races to find a cure and control the panic that spreads faster than the virus itself.