The NCIS team must stop a teenage student from detonating a bomb attached to his body, while he's taking the other students hostage at a Quantico base high school. Gibbs tries to stop him when he enters the classroom, only to realize that there may be someone else controlling the teenage student from the outside. Meanwhile, while Gibbs is in the classroom, Tony is left in charge.
J.D. is sick of perfect intern Keith and he's not the only one. Elliot's relationship with Keith is revealed, so the other interns think that he is getting special attention. In the meantime Dr. Cox boasts about being named "The Best Doctor in the City" by a local magazine, thus Dr. Kelso assigns him to the most difficult patient in the hospital to deflate his ego. Also, Turk and Carla continue to struggle in their quest for conception.
La Gondola - a hotel and restaurant in Derby - strikes Gordon as being stuck in the past, and indeed its glory days were back in the 1970s. The challenge is to haul the staff, decor and cuisine into the 21st century and once again fill the dining room with happy customers.
Cheryl gives her best to assure herself a spot on the Church Committee, and in order to get that, she forbids Jim to do his annual "Green Man" routine on St. Patrick's day. However, her plans are ruined when she gets arrested.
The team, minus Bob, are in search of a fallen Chinese satellite. This quickly turns into an opportunity to capture one of the world's most wanted terrorists. Meanwhile, Bob is questioned about the Unit's role in the rescue of the hijacked plane. Molly decides to visit the Unit's psychiatrist about the shooting at her home. Kim is frustrating about moving and then comforts a woman who has just learned her husband has died in combat.
To the dismay of his friends, a weary Lem is thinking about accepting a deal from the D.A. where he has to plead guilty to the heroin charges. With no other choice, Vic reluctantly meets with Antwon in order to ensure Lem’s safety in prison. Meanwhile, unforeseen circumstances that are beyond Claudette and Dutch’s control might cause irrevocable damage to their friendship.
Moz is a drug dealer and has very strange clientele who come and go from his flat.
The children's park in Dog River is going to the dogs, making it unsafe for the kids. Brent comes up with the idea of having a jelly bean jar contest, which everyone likes, until the jelly beans cause strife in the community. Davis relives some of his favourite movies when a convoy of truckers comes through Dog River. Hank joins a new club, which requires him to tell one little lie, which then leads to more and more lies; he somehow manages to involve Wanda into his web of deceit.
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.
The Heffernans hate an anniversary gift from the Palmers so much, they stage a robbery to rid themselves of it.
Tensions start to boil over after one player gets accused of "going south." Freddy Deeb, Sammy Farha, Todd Brunson, Mimi Tran, Bob Stupak, Shawn Sheikhan, and Johnny Chan join Daniel Negreanu for another High Stakes Poker cash game.
The candidates must throw a corporate retreat for car-dealership owners.
After a man is found not guilty of his wife's murder the CSI team finds evidence to the contrary.
Jack and Lynn must take action when they discover that the nerve gas is breaking through the protective seals that are keeping the CTU survivors alive. Chloe wrestles with her grief over Edgar's death, while Tony contemplates revenge against Henderson. Martha bolster's Logan's spirit as he wavers under more political pressure from Gardner.
Allison dreams that her brother was involved in a local bank robbery. Her suspicions grow when he unexpectedly shows up in town and gets involved with a con woman.
Christine's 8-year-old son, Ritchie has been accepted into a posh private school where Christine encounters two snooty class moms, Marly and Lindsay, who can't seem to grasp the concept that Christine actually works. Her 20-something slacker brother, Matthew, lives with her, but in a pinch, also serves as Ritchie's babysitter. On the first day at Ritchie's new school, Christine is mortified to discover that her ex-husband, Richard, with whom she gets along even better than when they were married, is dating a young, nice, impossible-to-hate woman also named Christine… the "new" Christine.
When Christine learns that Richard and "new" Christine are enjoying an intimate relationship, she becomes determined to make her own conquests. After several failed attempts to meet eligible men, she finally runs into a guy named Stan at the grocery store. Unbeknownst to Christine, Stan is a father at Ritchie's school who is known as "Sad Dad."
Charlie is nominated for an advertising award, but he decides to boycott it because his arch nemesis always wins. The rest of his family tries to trick him into going. Rose is having relationship problems with Gordon and seeks help from Charlie.
Kris has to ride for Dani Davis and is actually riding against Wildfire. Junior bets everything he has [the club] against Wildfire, with Bobby who claims he has turned over a new leaf. it turns out there is a major accident where both wildfire and dani's horse are hurt. Kris starts to beleive the accident is her fault.