Saturday Night hits Philly as the Pryor women go exploring. Helen heads to New York with Uncle Pete's girlfriend to see a show and a new emerging side of womanhood, beset with temptations. Patty, starting high school, learns new lessons in social skills in trying to make friends. Meg, completely broken off from Luke, goes to her first college party, with serious consequences. Roxanne starts at the Vinyl Crocodile with Luke still in the background as JJ continues with military training. In addition, Sam finds out how his cousin Nathan really makes his money

Helen learns the pressuers of being a working mom when she takes a job at a travel agency. Meanwhile Beth goes to visit JJ at Camp Lejeune and is surprised at the results. Meg wants to prove that she is grown up and does her book report on a controversial book. Roxanne is excited with the prospects of her new boyfriend.

Roxanne's relationship with Lenny begins to heat up as things are pushed to the next level. JJ's relationship with Diane, the mysterious woman from the bar takes an unexpected turn when he finds out who's wife she is. Meg must take a long hard look at her relationship with Drew after finding out that he is seeing other people. Jack wants Helen to quit her job after finding out that Will's surgery will be funded by the March of Dimes. The Walkers must put their lives back together after the death of their mother.

Hilary Duff and her sister Haylie impersonate two members of the Shangri-Las, a '60s girl group, in an episode in which the Vietnam War gets in the way of JJ and Beth, and Meg and Drew (Sam Page), when they go on a ""double date"" to Harrisburg, where Roxanne's friend Lenny is playing with his band. Meanwhile, Uncle Pete's drinking is getting in the way of his relationship with Nancy (Alicia Coppola); Helen is concerned about Will's state of mind as he recovers from his operation; Sam's getting interested in Malcolm X; and Patty makes a friend.

While Meg is on a date with Drew she runs in to Danny O'Conner who asks her out on date. Jack and Henry are shocked to find out that the store has been robbed. As Will prepares to leave the hospital he reminds Helen that she promised he could have a pet. Before Will's homecoming, Helen sends Patty to the pet store to get Will a pet. While there she meets Carl, a boy who works at the pet store. Sam struggles with the decision to chose between Yale and Howard University. In Vietnam, JJ runs in to Jimmy Riley, Meg's old dancing partner. Meanwhile Roxanne is crushed that Lenny hasn't called and turns to Luke for support. After Meg's date with Danny she comes to a decision about her relationship with Drew.

Helen begins to feel the pressure of being a working mom as she tries to juggle her professional and home life. When Drew comes over for dinner it is obvious that Jack doesn't like him. After watching a film in school Patty wants to buy her first bra but nobody has time to go with her. JJ experiences life on the front line as he fights in Vietnam.

JJ befriends a Vietnamese family and later in the episode, their village was destroyed. At home, his family is creating a care package for JJ along with an audio reel. Jack goes to a conference with his brother, Pete and is shocked at his actions towards the ladies. Meg continues to date Drew and is caught making out with him in a car. Later, she goes too far with him. Patty uncovers that Helen was pregnant with JJ before she married Jack and tells Meg. Meg reveals this dirty secret in an bitter arguement. Jack bans Meg from seeing Drew anymore. Roxanne and Luke finally kiss. Henry is given money from the Muslims to start his own repair shop

Meg is upset with Roxanne after finding out that Luke and her have been dating secretly. Uncle Pete gets cold feet as his wedding approaches and does not attend his wedding. JJ is surprised to see a friend of his from basic training in the untouchables. Later in the episode he is killed. Meg is offered the chance of a lifetime by Colin. Meg and Jimmy Reily reunite during a magazing interview. Sam and Angela don't like Henry's new lady friend.