Release Date: March 21, 2011Pat and Jean find the body of a scientist specializing in biological warfare dead in their compartment. When Pat finds out a man identifying himself as the scientist is a passenger on a train to California, he and Jean enter a race against time to stop the train and the imposter aboard.Original Air Date: April 17, 1955Support the show monthly at patreon.greatdetectives.netSupport the show on a one-time basis at http://support.greatdetectives.net.Mail a donation to: Adam Graham, PO Box 15913, Boise, Idaho 83715Take the listener survey at http://survey.greatdetectives.netGive us a call at 208-991-4783Follow us on Instagram at http://instagram.com/greatdetectivesFollow us on Twitter @radiodetectives