Old Jack and Salty are surprised when they find Jack's old car hooter. Jack remembers the car hooter being really useful when he was playing on the beach with Little Ernie and Little Sue. It makes a great sound! In the rockpool, Buster the Crab thinks that he has found an excellent new home, much better than his old shell. But Bertrum the Butterfish doesn't think the car hooter belongs there. How can the rockpoolers convince Bertrum that the hooter can stay?