Rogelio Douglas Jr

It’s Valentine’s Day and Leslie (Amy Poehler) decides she needs to find Ann (Rashida Jones) a new man. Ben (Adam Scott) must enlist Ron’s (Nick Offerman) help when he is stumped by Leslie’s elaborate Valentine’s Day scavenger hunt, and Chris (Rob Lowe) is depressed about the status of his love life. Aziz Ansari, Chris Pratt, Aubrey Plaza, Jim O’Heir and Retta also star.

A familiar face steps in when an intelligence detective is abducted by a heroin kingpin. In the season premiere, Intelligence is in pursuit of Derek Keyes (guest star Bokeem Woodbine), number one on Chicago's Most Wanted list and heroin kingpin. Meanwhile, Halstead (Jesse Lee Soffer) tries to get through to Lindsay (Sophia Bush) as her downward spiral continues after her three-week absence from the unit. At District, Olinsky (Elias Koteas) opens up to Platt (Amy Morton) about a secret from his past. Roman (Brian Geraghty) expresses his concerns to Burgess (Marina Squerciati) about what she's getting into by marrying Ruzek (Patrick John Flueger). Jason Beghe, Jon Seda and LaRoyce Hawkins also star. Yuri Sardarov, Markie Post, Nick Gehlfuss and Samuel Hunt guest star.

Lee Drexler returns from his honeymoon, only to be confronted by Cookie Brown, who demands the rights to Marvin's music. Ray arranges the deal, but then Lee reneges on it. Peggy Shaughnessy plants a seed of doubt in Kate's mind about the story that she published; Kate reopens her investigation but is threatened by two Southie thugs on the street.

Mickey and Daryll discover their loot is significantly less than they expected, but Mickey has a plan that sends them to the races. Abby is torn between her two potential protectors, Ray and Jim

Ray tells Bridget that she needs to lie about where she was during the shooting, for her own safety - but Abby brings Jim over to tell Bridget just the opposite. Ray convinces Lee and Ezra to give Cookie the rights to Marvin and Rekon's music, while Mickey starts planning a pot store robbery with Shorty. Bunchy struggles with his fears when confronted with Patty's son in the bathtub. Kate visits a Walpole inmate to find out what went wrong with her article.