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

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.