FBI-agent Don Eppes (Rob Morrow) har et hemmelig våpen i sin yngre bror, Charlie (David Krumholtz), et mattegeni som bruker ligninger til å løse forbrytelser.
When the FBI is called in to investigate a series of home invasions, the team uses Charlie and his math skills to help profile the suspects, but when his calculations go awry during a raid, Don suffers a life-threatening injury.
S5E520 42 min
