[1] While Charlie waits for an answer to the question he popped to Amita, Don and his team try to hunt down a sniper (Gary Cole) intent on killing an activist (David Call) under FBI protection.

The bank robbers refuse to take responsibility for the killings and Charlie recreates the shootout to find out how they died, while Don must face up to the fact that his former mentor may be dirty.

To find the person behind a deadly gambling ring that is running a high-stakes Russian roulette tournament, Don and his team are called in to investigate.

The team attempts to find the daughter (Emily Skinner) of a geneticist (Christian Camargo) whom they suspect was kidnapped by the unstable mother.

In the middle of a case where he is tracking down a criminal in charge of a heroin ring inside a prison, Agent Ian Edgerton (Lou Diamond Phillips, in a recurring role) unexpectedly turns into the murder suspect when the informant he meets with winds up dead, sending Edgerton over the edge when he takes a member of Don's team hostage.

Agent Roger Bloom (Henry Winkler), who worked on the Cooper case, is brought in to help the team when they foil a robbery of an armored car full of Federal Reserve money and recover bills that trace back to the infamous D.B.

Guest stars include Marilu Henner, William Katt, Rowena King, Rick Hoffman and Stephen Spinella.