Derek breaks up with Kendra to get out of buying her a Valentine's Day gift, so she asks Max to the school dance.
Insecurity over a waitress flirting with Daniel sends Christine to a plastic surgeon's office.
Brent gets tired of hearing Oscar using the same name for everyone, and decides to use what he thinks is a fool-proof way to put a stop to it. Lacey finds out some not-so-nice things about her future when she visits a psychic. Davis finds that it is possible to scare yourself silly, while Wanda and Emma have some difficulties organizing a party.
Spinner manages to impress his Lakehurst crush, Jane, but when he gets into a fight, he receives a scary diagnosis. Darcy starts to act out in class, just after she gets out of counseling.
William and Monica battle over learning the sex of the baby. Lynn deals with the fact she might not be marketable to Blacks.
Maya helps Joan try to reach Aaron's kids, as she tries to read them a letter Aaron wrote to his students. William tries to teach Jabari how to drive
Amanda gets a job at The Rack, but her first day does not go well. Meanwhile, Jessi's presence in Kyle's life continues to irk Amanda, and Josh is placed in a difficult situation when $120 goes missing from The Rack's cash register.
Owen, Nick, Ronnie, Aubrey, Gabriel and the Commander take a road trip to find the girl who saved Owen's life, and The Commander uses the opportunity to remind his sons of their childhood, and to finally be able to tell them about his condition. Nick encourages Gabriel to tell the truth about his upcoming departure to his daughter.
Maxxie is looking after Tony, but he has his own problems. He desperately wants to leave college and follow his dream to become a dancer, but his dad is giving him hell about it.
There is something alluring and menacing in the air throughout the UK when it comes to the people, the scenery, and especially the cuisine, and Tony is off to try and discover what that mystique is.
Michael, Whistler, and Mahone make their break from Sona. But Mahone seems like the odd man out along the way.
Sarah reevaluates the capabilities of her friend Andy's computer after he enters it in a chess competition. During the competition Sarah meets a stranger with a history similar to hers. Meanwhile, Agent Ellison finds remnants from a past terminator battle.
This episode demonstrates the production processes for CCD semiconductors, airline meals, paper cups and trumpets, and shows how each is made.
Walter fights with Jesse over his drug use, causing him to leave Walter alone with their captive, Krazy-8. Meanwhile, Hank has a scared straight moment with Walter Jr. after his aunt discovers he has been smoking pot. Also, Skylar is upset when Walter stays away from home.
"If you have a problem with this. I understand completely." - Freamon Marlo's crew goes on full alert after Omar's mysterious disappearance. Meanwhile, Carcetti concentrates on the plight of the homeless, while Bunk has an interview with a witness connected with the row-house case, and Templeton looks to a follow up to his recent front page story.
Dorcas looks after the inspector after he gets injured and he soon realises his evaluation of her may have been wrong. Elsewhere, Emma is annoyed with Robert's kindhearted gesture.
Tim's visit to Heartland causes sibling rivalry between Lou and Amy. Jack takes Lisa Stillman fishing on their second date.