Underground, they discovered humans as experimental guinea pigs (there was a brief shot of Marcus Wright lying on a gurney), imprisoned in cages.The male star was previously best known as one of the Sweathogs (Vinnie Barbarino) of the mid-1970s ABC-television sitcomWelcome Back, Kotter,and had also appeared in his first major film role in DePalma""s horror thrillerCarrie (1976).Bart, I""m going to send you to a school, one that""s out of town.It""s not a punishment.It""s a school that will help you o grow up.You""ll remain there until you""re of age, or until this court finds a reason to make a change.Years later (about four years) upon his return home, Bart phones both his married sister Ruby (who encourages him to "hurry" home and tells her two kids: "It""s your Uncle Bart.The town""s weak-willed police chief Harry Bleeker (Robert Keith) is overwhelmed by the disturbance and ineffective at stopping the escalating rowdiness ("It was an accident, I saw it").