Twelve years ago, high school classmates from Fish Creek High School in Fish Creek, Wisconsin performed the pop-culture phenomenon "High School Musical." Now, the cast returns to reprise the roles of their youth with the help of Broadway professionals.

Eleven years ago, high school classmates from Pacifica Christian High School in Santa Monica, California performed the Broadway classic "Ragtime." Now, the cast returns to reprise the roles of their youth with the help of Broadway professionals.

Twelve years after classmates from Saginaw High School in Ft. Worth, Texas performed the classic Disney musical "Beauty and the Beast", the cast returns to reprise the roles of their youth with the help of Broadway professionals.

Classmates from California's Santana High School who performed the Broadway classic "Annie" in 1996 return to reprise the roles of their youth with help from Broadway professionals. They come together in Vista, CA to spend a week singing, learning dance moves, memorizing lines, and taking a trip down memory lane, as they reunite for an encore performance.

Twenty-one years ago, high school classmates from Satellite High School in Satellite Beach, Florida performed the Broadway classic “Annie Get Your Gun.” Now, the cast returns to reprise the roles of their youth with the help of Broadway professionals.

Twenty-one years ago, high school classmates from Dwight D. Eisenhower High School in Houston, Texas performed the Broadway classic "Godspell." Now, the cast returns to reprise the roles of their youth with the help of Broadway professionals.

Twenty-eight years ago, classmates from Hackensack High School in Hackensack, New Jersey performed the Broadway classic “Grease.” Now, the cast returns to reprise the roles of their youth with the help of Broadway professionals.

Twenty-seven years after students from Michigan's Flint Central High School performed "The Sound of Music," the cast returns to reprise the roles of their youth with the help of Broadway professionals. As they reconnect, these friends -- some of whom haven't been on a stage in a decade -- wrestle with the past, struggle with the present and reconnect in ways that will alter their future.

Eighteen years after students from Katella High School in Anaheim, California performed the Broadway classic "Fiddler on the Roof," the cast returns to reprise the roles of their youth with the help of Broadway professionals.

Thirty-five years ago, high school classmates from Youth Performing Arts High School in Louisville, Kentucky performed the Broadway classic "Pippin." Now, the cast returns to reprise the roles of their youth with the help of Broadway professionals. William Bradford, the director from the original musical “Pippin,” helps co-direct this performance.

Twenty-eight years ago, students at Brookwood High School in Snellville, Georgia planted their Southern roots in the classic musical “Oklahoma!” Now, the alumni reunite with the help of Broadway professionals to restage it for an encore performance. The cast comes together and turns their struggles into a sensation, while learning more about themselves and each other in five days. Tony award-winning Broadway actress Ali Stroker appears in this episode.

Forty-four years ago, high school classmates from Los Angeles High School in Los Angeles, California performed the Broadway classic "Anything Goes." Now, the cast returns to reprise the roles of their youth with the help of Broadway professionals.