Plot summary
Kevin creates a dilemma with Wayne and his new girlfriend, Sandy ( Carla Gugino ), after Sandy falls for Kevin while watching an episode of Sonny and Cher on TV, thereby beginning a secret relationship between them. Kevin feels Wayne is not the right guy for Sandy, thinking she's too smart and beautiful for him. But when Kevin notices Sandy making Wayne a better person, he backs off. Later, Kevin asks a schoolmate, Alice Pedermeir ( Lindsay Sloane ), to the school dance, but she already has a date. Meanwhile, Sandy prefers to be with the younger, more sensitive brother; so she breaks up with Wayne in the parking lot at the dance.
Now Kevin is faced with an ultimatum—ditch his brother to be with his ex-girlfriend or comfort his big brother when he needs it the most. Kevin realizes that blood is thicker than water, putting family first, and leaves Sandy to dance with another guy. Guest-starring: Lindsay Sloane as Alice Pedermeir; Carla Gugino as Wayne's new girlfriend Sandy.
Credits
Adapted from Wikipedia contributors, The Wonder Years season 5. HTML formatting and reference markers removed.