When a deadly virus breaks out on a high-speed train, Dr. Laura Bennett and Conductor Michael Harris must work together to contain the outbreak and keep the passengers alive. As governments along the route refuse to allow the train to stop, fear and panic spread faster than the virus itself. Trapped onboard with dwindling resources, the passengers must confront their deepest fears and make impossible choices. Set against the backdrop of a claustrophobic and high-stakes environment, this is a story of survival, humanity, and the lengths we go to protect those we love.