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.
After recognizing numerological patterns in the Bible verses that the killer leaves behind, Don and his team are able to track the killer's movements but are one step behind when a gripping twist brings the chase to an end.
S4E404 41 min
