Plot summary
Kevin's older sister Karen ( Olivia d'Abo ) has become a hippie who does not communicate with her parents anymore. The tension is worsened when she brings home her new boyfriend Louis ( John Corbett ), also a hippie who angers Jack with his anti-war sentiments. Kevin also takes an immediate dislike to Louis; in the end, Kevin's inclinations about Louis turn out to be true, as it is revealed that Louis has been cheating on Karen. Guest-starring: Wendel Meldrum in her first appearance as Kevin's English teacher Miss White (although uncredited).
Credits
Adapted from Wikipedia contributors, The Wonder Years season 1. HTML formatting and reference markers removed.