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.
Don and the team hunt down the killers of two rock climbers in possession of a stolen diamond, while Charlie decides if he should get his FBI clearance reinstated and a new agent joins the team, on the fifth season premiere.
S5E501 39 min
