The Compass Killer is back, and adds yet another to his circle of victims -- but this time the CSI squad knows his name; Flack's alcoholism threatens to derail his career...
DNA links Olivia to the murder of a biker in Central Park whose gang specialized in hits and prostitution. With Munch and Fin assigned to the investigation and evidence continuing to mount against Benson, Elliot begins his own inquiry – determined to prove her innocence and save her career.
Mr. Schuester has the Glee Club split up into pairs to sing their favorite ballad, but when one kid gets sick, he’s forced to step in and winds up in a sticky situation. Meanwhile, Finn and Quinn have to face the music when dinner with her parents goes awry.
This fan favorites episode revisits the water-heater rocket, car-roof cling, curving bullets, liquid nitrogen and snowplow split myths.
Frankie accidentally hits Brick in the head with a beer bottle when trying to get the trash out before the garbage truck leaves. But when Brick innocently tells his school that the scratch was caused by his mother throwing a beer bottle at him, a social worker comes to evaluate the Heck family. Meanwhile, Bob helps Mr. Ehlert shoot a commercial for the car lot.
To test a new Ryker's security cell, Spider-Man volunteers to try to escape. But the Green Goblin traps him inside amid a sea of felons he put away.
When Peter breaks up with Liz to be with Gwen, nothing goes as planned. Likewise for Spider-Man, who finally unmasks the Green Goblin.
Homecoming at the newly-reopened school prompts Coach to investigate East Dillon's history. Tami feels the wrath of the boosters. Landry and Vince both like Jess. Julie accompanies Devin to a gay bar. Matt and Tim go hunting.
While Hetty is attending a Senate hearing in D.C., the investigation of a murdered Marine Lance Corporal leads the NCIS team to stolen anti-tank missiles and a dangerous militia group.
While Alicia is preparing in a case defending a scientist accused of arson, she is suddenly asked to testify on Peter's behalf. Damages Peter Riegert guest stars as the judge in Peter's case and CBS' The Early Show star Russ Mitchell guests as himself and interviews Peter.
Mike journeys to Wenatchee, Washington to help maintain a hydroelectric dam. Then he explores a fish bypass system where he catches and tags fish and winds up wading through a pool of fish poop.
Erica receives a new perspective on her brother and returns from the past ready to deal with Kai.
The shooting of Inspector Patricia Wright’s brother unites the team at Major Crime. Can they bring the killers to justice? While the detectives gather together to help their boss, a respected transplant surgeon is murdered. Malik’s wife, fed up with his obsession with work, leaves with their children.
Annie leaves Debbie and Harry surprised when she informs them that she would like to invite Jasper over for dinner. Dixon decides to pass on the event as a result of his anger over Debbie's management of the Sasha situation. Meanwhile, Kelly shows support for Silver regarding the caring of Jackie despite the fact that she does not yet know if she can ultimately forgive her mother for all the pain she has caused in the past. Navid confronts Adrianna about her drug use, and a weekend camping trip leads to Ryan and Jen's relationship climbing to a new level. Also, Naomi is caught kissing Jamie by Richard and his mother, forcing her to come clean about her plans for CU admission.
While Opie seeks both revenge and reconciliation, Chibs makes a secret deal with Agent Stahl (Ally Walker) to protect his wife and daughter.
While on a lunch date, Kristin and Brody recall the crazy times they used to have together. After Brody toasts to having a nice lunch without fighting, Kristin mentions that Jayde wants to talk with her. Brody tells Kristin she's out of her mind ...
Chad reports from the Peace Ambassador Center as 100 diplomatic visas are being issued to the first wave of American Visitors, with Anna getting the first, but not everyone agrees with the decision. Erica has been tasked to protect the Vs and is tracking a death threat while paired with a V officer. Meanwhile, Ryan starts reaching out to his old friends to build up opposition forces and help fight the Vs.