Episode 414, "Checkmate" Tomorrow 9|8c AM
SEASON 4, EPISODE 414 - Don's old flame Robin Brooks returns to California to prosecute an incarcerated criminal, but when three witnesses involved in the case are murdered, Don and his team realize that the next victim may be Robin and must work to keep her safe.
SEASON 4, EPISODE 415 - The team searches for a motive after the family members of Clay Porter, Jr., a fugitive on the run for murder, are taken hostage by a gang of military thieves. Bill Nye "The Science Guy" Guest Stars as Bill Waldie, the Head of Cal Sci's Engineering Department. Sharif Atkins ("ER") Returns as Clay Porter Jr., an Ex-Marine Who Is On the Run For the Murder of a Serial Killer.
SEASON 4, EPISODE 416 - A mass poisoning at a cult compound leads the FBI team into a maze of old grudges and a complex murder plot. Academy Award-Nominated Actor Michael O'Keefe ("The Great Santini") Guest Stars as Reverend Joseph Ezra, a Cult Leader.
SEASON 4, EPISODE 417 - While investigating the murder of a rap star, the team uncovers a conspiracy of embezzlement and bribery which may be connected to his death. Meanwhile, Charlie prepares to meet Amita's parents for the first time. Rappers Juicy J and DJ Paul from the Academy Award-Winning Group "Three 6 Mafia" Guest Star and Perform "Lolli Lolli (Pop That Body)," the First Single from Their New Album Last 2 Walk.