Sam learns that an operation is to be conducted on him in 2006 to try and revive him from his coma. However, he believes that to return to the twenty-first century, he has to betray his colleagues in 1973 - but can he regard them as real or imagined?
Ruby and Louise tries to learn the Hippity Hop Dance. Meanwhile, Roger teaches Max how to play football.
Carrie is convinced that Deacon and Kelly were only able to afford a vacation home by being cheap. Meanwhile, Arthur tries to help Spence get a new job.
Everyone gets in the action as Season 3 comes to an end on High Stakes Poker. Phil Ivey, David Benyamine, Antonio Esfandiari, Brad Booth, Patrik Antonius, Phil Laak, John D'Agostin, Brian Townsend, and Daniel Negreanu close out the season playing $300/$600 No-Limit Hold'em on High Stakes Poker.
After a scalped body is found near a Native American casino, Horatio believes that the owners of the Casino and the County Supervisor may have had some involvement in the murder.
Manny's parents want her to come home after the tragedy at Emma's house and to Emma's surprise, Manny agrees. She can't seem to tell Manny how she feels though, since Manny's got a spirit squad competition and a brand new boyfriend to balance. Emma can't hide the fact that she feels ignored and when she thinks her friend's death is being glossed over she decides she really doesn't have to hide her feelings. At all. Dylan has been absent, grumpy, and completely mute making Marco worry that Dylan is cheating again. Jimmy and Spinner are happy to help catch him in the act, but none of them are expecting what they find...
The future of the team is threatened and without having that to deal with, Sandra has to take drastic measures to prevent Jack from exacting revenge against the man who killed his wife Mary. Sandra also has the added benefit of trying to keep Jack’s actions from shady new recruit DCI Karen Hardwick while working on a 10-year-old murder case.
Charlie takes a liking to Myra, the witty sister of Judith's fiancé, Herb.
Five teenagers must locate and secure ancient relics with unbelievable power, while at the same time stop a demonic corporation who want the relics for their power.
To find the remaining suitcase bombs, both Jack and the President set up bluffs.
Robin attends Lily's bridal shower and finds the gift that she brought is out of place. Barney hires a stripper for Marshall's bachelor party.
Wayne must deal with legal arcana in an eminent-domain case and Dahlia gets a job for which she is equally qualified: a dental hygienist. Ginny catches up to the Malloys, which means Dale is probably not far behind.
Emerging as head of the 'hood, Tommy gets scammed while trying to evict drug dealers. Jimmy demands payment from Jenny; Nicky learns the Donnellys are behind Louie Downtown's disappearance.
Trying to send an e-mail to Barb about Mr. Harris, Christine ends up sending it to all the parents from school, nearly costing him his job.
When a young, interracial boy goes missing, race and money appear to play the starring roles in the investigation.
The team re-investigates their oldest cold case yet, the 1919 murder of a young woman who was a passionate advocate for women's right to vote.
Sarah accompanies Kitty to Senator McAllister's hometown to interview local residents for his upcoming election campaign, where she meets his high school sweetheart Alice. The pair meets up with some local high school seniors at a bar, and attends a party with them. Rebecca asks Justin to attend a house party with her, who ends with Justin getting a black eye; while Chad makes a surprising decision to come out that affects his relationship with Kevin in a negative way. Meanwhile, at the advice of her best friend, Nora asks her professor out on a date. And Kitty returns to L.A. with new insight on McAllister and admits that she's falling in love with him.
Vince's new agent wants him to do a period film. In the meantime Eric and Vince agree to have lunch with Ari and Turtle plans Vince's birthday party.