When the MacDougals are invited to spend Easter with the Barones, the two families attempt to bond over a 500-piece puzzle. While everyone else gets frustrated with the puzzle, Ray and Pat continue working on it until the wee hours of the night while sharing stories about themselves and their families.
Amy confides to Bright that she may have developed feelings for Ephram and sees him in a new light, but Bright begs her to have mercy on poor Ephram, who is still nursing a broken heart from his recent break-up with Madison. Meanwhile, Linda reveals her HIV status to Delia after the girl confronts her about all the pills she's been taking. While Delia takes the news better than expected, the rest of the town goes ballistic after Linda's secret unintentionally becomes public knowledge. Dr. Abbott faces a potential malpractice suit, and Andy is forced to come clean with Ephram, who doesn't take the news very well.
A police officer collapses and dies after pulling over a car, and the investigation reveals he was murdered. Horatio grows suspicious when Internal Affairs gets involved in the case, leading him to believe that the killing wasn't a random crime. Meanwhile, Calleigh aids an abused woman who is living with one of the suspects in the probe. Yelina begins dating Horatio's nemesis – who is heading up the Internal Affairs inquiry.
Jake's sullen mood baffles and bothers the family and prompts Alan and Judith to take him to a child psychologist.
After finding out that Lauren is working for the Covenant, Vaughn is told to keep up the façade of a happy marriage in order to keep tabs on his wife's activities. But he's in for a shock when he uncovers the truth about Lauren's mother, Olivia. Meanwhile, Jack refuses to help exonerate Sloane of his crimes and put in motion a stay of execution, and a monk discloses the identity of the Rambaldi "Passenger" to Sydney.
When Piper is kidnapped and cocooned by the Spider Demon, and becomes Chris infected with the Demon's venom, causing him to mutate into a spider, Paige, Phoebe and Leo try to rescue them. Meanwhile, Leo finally learns why Chris resents him.
Jack and Chase race against time to capture Saunders before the deadline, while Chappelle plans an escape. Michelle begins a frantic search when she learns that an infected hotel guest may have slipped through her fingers.
The town buries its most famous casualty while the man responsible is tried in Swearengen's saloon. Trixie helps a widowed Alma care for an orphan. Doc warns of an impending epidemic.
His father's longtime goomar sheds light on some of Tony's lingering emotional and financial mysteries. Meanwhile, Junior sees the upside of attending the funerals of fringe relations, while Christopher sees the downside of enabling an A.A. friend's new addiction.
After hearing that Skinner is getting cold feet about their wedding, Edna leaves Skinner at the altar and, after sending back one marriage gift, hooks up with Comic Book Guy. Meanwhile, Homer and Marge have an argument about if their marriage is still solid or not.
Kevin has to take a extra-curricular activity and takes Improv as he's convinced it's the easiest one their is.
A young high school athlete dies after a drug bust. Jordan and Devan are sent to investigate…they each have their own idea of what happened. Meanwhile Woody lands his own case…that puts his life at risk.
Ignorance of the Alamo in Bobby's Texas History class prompts Hank to help organize a reenactment, but the author's version is revisionist.
Friction at the firm gets to Jimmy, who's torn between loyalties and principles. Meanwhile, tension besets Shore as he crosses swords with his brilliant but erratic new boss, whose behavior raises questions of competence.
Sue meets Jack and Bobby 's mentor who comes to Washington D.C. to ask for help in tracking a suspect whom Wes Kenner believes brought weapons grade uranium into Washington. Jack, Bobby, and Sue must try to track him down before the uranium is used to make a bomb. Dimitrius acts as a relief supervisor for Ted Garrett who is on vacation. Dimitrius gets in trouble for giving the go ahead to take over see case that began in Washington D.C. 's jurisdiction. Larson doesn't like the way Dimitrius is handling the case due to his lack of experience in dealing with the Russians. The team must go to court to make an appeal to have the case kept in Washington D.C. 's jurisdiction. Tara learns that Jack and Bobby's mentor faked his own death. The team must go to court to make an appeal to have the case kept in Washington D.C. 's jurisdiction. Tara learns that Jack and Bobby's mentor faked his own death. Jack soon figures out that was the only way to learn that help was needed.
After spending all his money getting Stockwell defeated, Brian is at a crossroads about his future; Michael and Hunter return home to face the custody hearing.
Three old men from Yorkshire who have never grown up face the trials of their fellow town citizens and everyday life and stay young by reminiscing about the days of their youth and attempting feats not common to the elderly.
Drake finds out Josh is great at pool or billiards as Josh calls it. Drake bets some kids, and takes advantage of Josh's pool skills and starts hustling people, by taking their money, shoes and other clothing/personal items. Now Josh has made the ultimate bet, and Drake's stuffed in the corner pocket.