The relationship between Carrie and Brody becomes more complicated when they head into the countryside for the weekend, while Mike and Jessica deal with the fallout of their revelation.

The Lightman Group is hired to examine police profiling techniques in the wake of an incident involving Wallowski, and Internal Affairs attempts to leverage Lightman's relationship with Wallowski to get him to incriminate her.

Frank and Callie look behind the veil at Rosegrave Prep and learn that Laura's investigation started in high school, while Joe tries to prove their conspiracy has a local police connection.

The boys head back to school, but Frank and Callie have different takes on the new girl. Frank learns more about young Laura, while an old friend returns to offer Joe information...for a price.

Frank and Joe exchange truths with their Grandmother and find a long-hidden secret in her home. Fenton finds what he's looking for. Meanwhile, other forces work against them all.

The Runaways spring a trap to rescue their missing friends from Jonah and his family.

Karolina, Chase and Janet plot their own escape from the Algorithm, while in the real world the rest of the Runaways team up to fight Jonah and get them out.

Antonio struggles with his guilty conscience as he tries to take down a major drug dealer. In order to protect his team, Voight takes a big shot at Kelton.

With Kelton's election all but assured, Voight and his team must go off-book in a last-ditch effort to save Intelligence from getting axed.

When Kelton is found murdered, Voight's grudge against the mayor-elect puts him under suspicion; Upton and Halstead want to prove their sergeant's innocence, but the more evidence they gather, the closer they come to doing the opposite.

Monk dips his toe into male bonding when he attends the playoffs with Leland, but a murder distracts them from the game and its solution may be the only way to ensure the championship.

Monk gets hired to follow his childhood bully's wife who is suspected of having an affair, and Monk hopes she is.

With the Machine's help, Reese closes in on finding Finch as he uncovers shocking details of Root's past.

With Finch back in the Library, Reese returns to field work, only to face his toughest case yet -- protecting the privileged daughter of a Brazilian diplomat.

When The Machine gives Reese and Finch the number of a mob enforcer whose life becomes endangered, they must decide whether the killer's life is worth saving.

After his attempt to sever ties with Abu Nazir, Brody relives his captivity and recommits to his mission; Carrie finds herself in the middle of a public relations nightmare after the mosque shooting.

Carrie and Saul identify Walker's contact in Washington but their target has diplomatic immunity; Brody is approached to run for a disgraced congressman's seat in the House of Representatives.

A pro baseball pitcher's daughter is missing, and a ransom photo on social media suggests that she has been kidnapped. Meanwhile, Rusty is forced to testify in court against his will in defense of Slider.

A frustrated, failed filmmaker decides to create a film where he gets revenge and kills all of the people who failed him. Meanwhile, after the penalty phase in the trial, Rusty tries to come to terms with his feelings for Gus.

A gun used in a gang-related double homicide is tied to a 12-year-old off duty police shooting and, eventually, a local pastor who's an outspoken critic of the LAPD. Meanwhile, Rusty finds out that his mother might be in danger.

While vetting an art museum staff for security leaks prior to a major exhibition, Lightman meets a beautiful woman who entangles him in a game of cat-and-mouse.

While Dr. Lightman investigates who was responsible for a deadly coal mine explosion, the FBI questions Dr. Foster about Dr. Lightman's gambling associates.

A young woman is thrust into the world of old money and deadly secrets after accepting a nanny job from a handsome widower.

While bonding with the other nannies, Elena learns that the Wards' previous nanny vanished without warning. Elena continues her search of The Greybourne and discovers a shocking truth.

Elena snoops around Torys apartment while helping Darcy and Bennet, which leads to an unexpected discovery in the secret room. Elena is rattled by a surprise call from her past.

With Finch back in the Library, Reese returns to field work, only to face his toughest case yet -- protecting the privileged daughter of a Brazilian diplomat.

When The Machine gives Reese and Finch the number of a mob enforcer whose life becomes endangered, they must decide whether the killer's life is worth saving.

Carrie and Saul reel from the news that Walker is alive as the intelligence community clashes on the best way to capture him; Brody learns a shocking truth about his captivity.

After his attempt to sever ties with Abu Nazir, Brody relives his captivity and recommits to his mission; Carrie finds herself in the middle of a public relations nightmare after the mosque shooting.