The Cassandra Crossing plot
"The Fear Is Spreading"
In a failed terrorist attack, one of the terrorists infects himself with a deadly virus. He flees on the train from Switzerland to Sweden and is getting sicker and sicker. There is a diverse group of passengers on board the train who are confronted with the virus. This becomes especially difficult when the commander in charge decides that the train must not stop and must be quarantined by an army of commandos. When it turns out that the commander has an even more rigorous idea to contain the virus, the passengers revolt.