Andrea Thompson

While investigating a series of murders of entire families in Hampton, Virginia, the BAU is forced to visit Red Onion Supermax Prison to seek advice from one of the most atrocious killers from the team's past, nicknamed "The Fox," who delivers a portentous message to Agent Hotchner. Also available on iTunes

As Jack prepares to carry out Saunders's order to kill Chappelle, Chase and a strike team converge on Saunders's apartment. Also available on Amazon Instant Video, iTunes and VUDU

Jack learns the man behind the virus attacks is a former colleague of his; Saunders begins making demands on President Palmer. Also available on Amazon Instant Video, iTunes and VUDU

Jack allows Amador to escape so he can track him; panic spreads as the virus spreads through the hotel; Palmer has to decide whether or not to lie. Also available on Amazon Instant Video, iTunes and VUDU

After Kyle is captured, the CTU agents try to stop Jack from escaping with Ramon Salazar. Also available on Amazon Instant Video, iTunes and VUDU

When the CTU loses track of Kyle, and Palmer fears he'll have to either give in to the terrorists' demands, Jack proposes a risky third alternative. Also available on Amazon Instant Video, iTunes and VUDU

Jack finds Kyle's bag of suspicious powder; Palmer learns about the allegations against Anne; Chase is shut out of Jack's pursuit of Kyle. Also available on Amazon Instant Video, iTunes and VUDU

Sipowicz and Simone attempt to snare a man suspected of murdering his young son. The detectives investigate the death of an Hasidic woman.

Jessica investigates the shocking death of journalist Jane Dawson, who was planning to publish an unauthorized biography about film legend Ellen Lombard. Eyewitness accounts put Lombard's husband, Arthur, at the scene of the crime.

Sam takes on his rank as a Navy SEAL in the same squad as his brother. He's not sure if he's there to save his brother's life or to ensure the success of the mission. Will he have to watch his brother die to fulfill his duty? Also available on Netflix

With Det. John Kelly leaving, Det. Andy Sipowicz, is partnered with Det. Bobby Simone. Though Simone rubs Sipowicz the wrong way on his first day, their partnership improves as they get to know one another.

In the fourth season of this award-winning show, the action at New York City's 15th Precinct is as hectic as ever. While Lieutenant Fancy continues as precinct commander, Detective Andy Sipowicz, although still a bit rough around the edges, has mellowed with the birth of his son.