en_captions: A black man leads  class of people dancing for exercise in a parking lot.  The man moves slow to show the move.  The man then goes fast and the class follows his lead.  The camera pans and we see the class as a lady in black pants joins.  We see the class and the teacher as they perform the routine.  We see the teach and the class as they move their arms.  The routine finishes and the class claps for the teacher.