Robbie plans to bring this new sound to the dinosaurs, who he believes will go crazy for it. Howlin' Jay is reluctant due to his previous contact with dinosaurs ("The Lizard"), but Robbie and Sonny take a demo of their music to Ty Warner, the head of Volcanic Records. Warner isn't interested in mammal music but changes his mind after listening to the tape and signs Howlin' Jay and his band. Meanwhile, Robbie introduces Howlin' Jay and Sonny to the Sinclair family, and Earl and Jay bond over the perceived idiocy of their sons.