A look at the human fascination with the end of times and a few other discussions on some of the events that take place in the film. We hear from experts such as 'Arguing the Apocalypse' author Stephen O'Leary, clinical psychologist Selina Matthews, Cal State Northridge professor of anthropology Sabina Magliocco, Loyola Marymount assistant professor of theological studies David A. Sanchez, UCLA Center for the Study of Religion's Jean Rosenfeld, Chapman University Associate Professor of Sociology Paul Apodaca, USC Department of Physics and Astronomy professor/chair Werner Dappen, and UCLA Professor of Physics and Astronomy Mark R. Morris. (Included in the Bluray release of Knowing).