Samantha is hired by a very rich 13-year-old girl to plan 'the Bat Mitzvah of the Century'. Miranda's new flame turns out to be none other than 'RoboCock'. Carrie meets a new mate--who happens to live at home with his parents.

With Rebecca again tasked with defending ACN in a possible lawsuit, Will tries to protect Neal from the fallout over the DOD leak. Charlie and Leona enter the fray of a hostile-takeover gambit involving Reese's half-siblings, Blair and Randy Lansing. Sloan fears Don may be guilty of cashing in on insider information; Maggie ponders the ethics of eavesdropping; Hallie pays a price for a late-night tweet.

Pratt gets a surprise when the new attending doctor, Victor Clemente (recurring guest star John Leguizamo - "Spawn," "Moulin Rouge!"), poses as a patient to test the knowledge of doctors in the emergency room. Meanwhile, Kovac bonds with his former coma patient and contemplates bending the rules for her. A breast cancer patient convinces Abby to get her first mammogram. And Pratt's father, Charlie (recurring guest star Danny Glover), tries to convince his son that he has become a responsible family man.

Clemente (recurring guest star John Leguizamo), Abby and Neela secretly care for a very important patient while Dubenko (recurring guest star Leland Orser) tortures the emergency room staff via a robotic television camera from his home. Sam is coerced into accepting a management role and is given a dreadful task. Meanwhile, Pratt is visited by his half-brother, Chaz (recurring guest star Sam Jones III), and emotions from the past remind Pratt of how his father, Charlie (recurring guest star Danny Glover), abandoned him.

Neela rides along with ambulance driver Gates (recurring guest star John Stamos). They respond to a huge emergency after two commuter planes crash in midair and land on a densely populated area of Chicago. Many passengers and pedestrians are injured, and other victims are trapped inside a burning building. Meanwhile, County General treats trauma victims of the plane crash, and Sam struggles with an executive decision that could have serious repercussions to her employment. Neela's bravery wins the respect of her co-workers--especially Gates--but her day is not over when she receives a surprise.

Clemente (recurring guest star John Leguizamo) is missing, and Dr. Dubenko (recurring guest star Leland Orser) volunteers to take the dayshift but ends up feeling overwhelmed. Ray is put in a very awkward situation when his young former girlfriend comes into the emergency room with serious abuse-related injuries. With a child in their future, Kovac and Abby venture out for some baby shopping. Meanwhile, Neela receives word that she has been selected for the surgery elective she had been hoping for.

Neela prepares for Gallant's (Sharif Atkins, not appearing in this episode) homecoming from the war, but her plans change when she receives a call from Iraq. Meanwhile, when Kovac and Clemente (recurring guest star John Leguizamo) disagree on how to save a patient's life, Abby gets caught in the middle. A police officer and a little girl are victims of a shootout, and Neela is conflicted about whether or not she should save the gunman's life. Recurring guest star John Stamos appears as paramedic Gates.

Charles Ponzi hires a publicist to improve his image, Sadie the Goat becomes a notorious Hudson River pirate, and a conman poses as a Scottish royal. Featuring Jesse Plemons, Kat Dennings, Ed Helms, Taran Killam, Josh Charles and Ronda Rousey.

The whole team must investigate a crime where a husband and his porn star wife were murdered execution style.

Tatiana Maslany, Kat Dennings and Ali Stroker salute Suffragettes who fought for their rights with jujitsu, the Birmingham Children's March and disability rights activists who organized America's longest sit-in of a federal building.

After escaping capture in Miami, serial killer Henry Darius travels to New York with a college student as his hostage in order to steal millions from her family's vault. Upon arriving, Darius kills a group of students in cold blood and leaves clues specifically for Mac of his whereabouts. Meanwhile, while in NY to assist on a case, Horatio is served with a subpoena when the newly appointed DA names him a suspect in an old murder case. (TV-14)

Celebrities Michelle Buteau, Kat Dennings, Tiffany Haddish, Pete Holmes, Thomas Lennon, Bobby Moynihan, Law Roach and Meghan Trainor.

Celebrity guests: Whitney Cummings, Kat Dennings, Fortune Feimster, Tiffany Haddish, Pete Holmes, Padma Lakshmi, Joel McHale and RuPaul.

Kentucky Daisy stakes a claim to land, Gordon Cooper overcomes mechanical issues on a one-man space mission, and African-American Deputy Marshal Bass Reeves is the inspiration for the Lone Ranger. Featuring Kat Dennings, Colin Hanks and Jaleel White.

Jack and his team search for a teenage boy, Ethan Sawyer (Jonathan Murphy), after he disappears from his home. Ethan's parents think that their son is a happy teenager about to take his Scholastic Aptitude Tests in preparation for college. But the agents learn that the boy was extremely troubled, having dropped out of his study sessions after discovering that his girlfriend and other friends were involved in afternoon sex parties. When Ethan's girlfriend claims to have been raped, the squad must find out if Ethan's possible involvement led to his disappearance.

Conan sits down with comedian and actor Demetri Martin as well as "Thor" star Kat Dennings.

Actress Kat Dennings (show "Shifting Gears"); actress and Estée Lauder's new brand ambassador Nia Long; musician Charles Jones.