Say What is a behind-the-scenes look at a fictional sketch-comedy TV show for kids; it's a show within a show that premieres with the finale and works backwards toward the pilot. The series begins with Jonathan Young, aka Jo-Yo, bidding farewell to the audience and his fellow cast members as he announces that he is leaving to fly solo after a successful 3-year run. As the show retrogresses, the reasons behind Jonathan's departure become clear as we see the rest of the cast endeavor against Say What Live's inevitable end.