Former detective Alex Donovan leads a team of volunteers known as The Forgotten Network, a dedicated group of amateur sleuths that takes on murder cases after the police have reached a dead end and even unable to identify the deceased.
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.
Nathan has decided he has no possible job options left. But in a way he feels liberated – he’s free to consider impossible options. The world opens up to him again – he’ll become an event manager, or a personal trainer! Sammy is trying to be supportive but it’s wearing her out. Determined to do something useful, Nathan secretly tracks down an address for Dave’s father, Tom Jenkins, and drives into the country to suss him out. He meets his cousin, Coby, who seems to be a rough-head compo cheat. He also learns that his grandfather Tom is a notorious local crook, doing time in jail for car rebirthing. Nathan is rocked by the murky gene pool they all share. Is it any wonder his life seems to be falling to pieces? Julie is still effectively confined to bed, and Rachel is feeling the pressure organising a baby shower that will be fun for Julie and her friends. To complicate matters Chrissy texts to warn she won’t be coming, but sends her love. Rachel can’t understand how Julie’s best friend can miss the party. Julie is clearly hurt, but makes excuses for Chrissy, knowing the real reason she’s kept away. Warney is in a funk over Trish and is worse company than usual. Ben and Melissa want him out. Carbo appeals to Sammy – is there any chance she can help get Warney and Trish back together? Sammy can’t think of anything worse, except perhaps the relationship her mother is in now, with her aging rich boss, Andrew Malouf.
While Opie seeks both revenge and reconciliation, Chibs makes a secret deal with Agent Stahl (Ally Walker) to protect his wife and daughter.
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.
Samuel learns just how powerful he can become and takes dangerous measures to reach his full potential. Meanwhile, as Tracy begins to lose control of her ability, one of her own comes in harms way. Elsewhere, Sylar continues his battle with Matt.
Later, Six meets a woman from his past while 147 endures family tragedy, and a natural disaster strikes the Village.
Six agrees to help Two by spying on his fellow Villagers. Meanwhile, 11-12's secret is revealed and 313 learns to fear her gift.
Eight Canadians with poor driving skills are sent to an army base. They undergo challenges to enhance their driving abilities. Weekly, the most improved driver leaves. The last remaining participant is deemed Canada's Worst Driver.
Miranda takes French class and Tango lessons so Gary will see her in a sexual light. Things don't quite go to plan.
Jon wins a turkey in a competition, which he plans to cook for Liz. However, when it is delivered it is still alive. Garfield disguises himself as a turkey to get rid of the real one.
Jon finds his old Accordion but Garfield doesn't like him playing it nor the very sound of it. Garfield tries to get rid of it, but in the end, the Accordion breaks and Jon gets bagpipes instead.
The Lightman Group helps a teenager who believes he was abducted as a baby, while Loker and Torres try to figure out what caused a deadly stampede at an electronics store.
Hoping to impress the elitist theater kids at NYU, Blair sets her sights on landing a private concert with the hottest musical performer of the year, Lady Gaga. Dan and Olivia sign up to write and star in a school play, based on an idea by Blair and directed by Vanessa. With Blair out of the picture, Serena turns to Nate to help her get through a difficult situation. As a favor to Chuck, Jenny agrees to hang out with Damien, the son of an ambassador who is staying at Chuck's hotel, but the experience proves to be a lot more intriguing than she expected.