Brilliant CalTech mathematician Charlie Eppes (David Krumholtz) helps his brother Don (Rob Morrow), an FBI agent, solve the most puzzling crimes in this unique drama that ran from 2005 to 2010. When a hot lead goes nowhere, you can count on the cold logic of numbers to break the case! Also stars Judd Hirsch, Peter MacNicol, and Alimi Ballard. 118 episodes on 31 discs. 83 1/3 hrs.