CCB 117: Lights, Camera…..caboose / The Barber Of Bobville
CCB 118: Earth To Bob, It’s National Train Day / Choo Choo Bob’s Train Extravaganza
104: Structural Corruption
After an engineering student at CalSci is found dead from an apparent suicide, Charlie convinces Don to launch an investigation after he reads the student’s thesis that asserted that the architecturally magnificent Cole Center in Los Angeles is structurally unstable. Although reluctant at first, Don and his FBI agents discover that the student’s findings were correct and uncover a dangerous and surprising conspiracy. Meanwhile, Alan prepares for a first date and convinces Don and Terry to join them, hoping they might rekindle their old romance
105: Prime Suspect
When a 5-year-old girl is kidnapped from her birthday party, Don and Terry lead the investigation but must rely on Charlie's help, as the girl's father, Ethan, is also a mathematician. Charlie realizes the kidnapper's motive when Ethan reveals that he is close to solving Riemann's Hypothesis, a difficult math problem. If solved, the solution could not only earn him with $1 million but could break the code for Internet security, unlocking the world's biggest financial secret. Neil Patrick Harris ("Doogie Howser, M.D.") guest stars at Ethan Burdick.
519: Through The Looking Glass
Frank goes toe to toe with an investigative journalist who refuses to give up her source, despite the source admitting to committing murder. Also, Danny is paired with a troubled teenager as part of an NYPD program aimed at influencing youth to make better decisions. Leslie Hope guest stars as Anne Farrell, the investigative journalist.
When a suspect voluntarily admits to killing a reality show celebrity chef in his own restaurant, Danny and Baez are convinced the suspect is taking the fall for someone. Also, Frank faces a moral dilemma when a longtime friend, Sen. Ted McCreary, asks for Frank’s help to make a DUI go away, and investigative journalist Anne Farrell returns. Peter Coyote guest stars as the Senator.
521: New Rules
When NYPD Deputy Chief Donald Kent, a commanding officer of the gang division, and his wife are gunned down in an apparent gang hit, Frank orders all hands on deck to catch his friend’s killer. Working the case, Danny and Baez go see Mario Hunt, a well-known member of a deadly gang, in the first of a two-part season finale. Dennis Haysbert guest stars as NYPD Deputy Chief Donald Kent and Cliff “Method Man” Smith guest stars as Mario Hunt, a well-known member of a gang.
522: The Art Of War
409: Bad Blood
Danny and Baez investigate a homicide in which Baez’s estranged brother, a former drug addict, is the lead suspect. Meanwhile, Frank learns one of his most highly decorated officers, a German Shepherd in the K9 unit, is being accused of police brutality, and Henry investigates the widow of a former NYPD pal who might have had a hand in her husband’s death.
410: Mistaken Identity
411: Ties That Bind
412: The Bogeyman
413: Unfinished Business
414: Manhattan Queens
415: Open Secrets
When Danny and Baez investigate the kidnapping of a young girl who disappeared after school, it brings back difficult memories for Danny, who worked on a similar unsolved case many years ago. Meanwhile, Frank butts heads with Inspector General Kelly Peterson when he refuses to divulge information about a program that allows Frank to oversee intelligence officers abroad.
416: Insult To Injury
When Danny takes a call from a woman who is threatening to kill herself along with the man who killed her parents in a drunk driving accident, he rushes to find her. Meanwhile, Frank accompanies his grandson, Sean, on a class field trip and struggles to get the lead chaperone to loosen the reigns so the kids can have fun.
417: Knockout Game
418: Righting Wrongs
506: A World Of Their Own