Cement Mixer Melvin worries a lot. He worries he might get dirty. He
worries he might get stuck. He even worries he might get worried. But
one fateful day Rescue Rita is in need of a little rescuing, and
Trucktown's biggest worrywart is the only one who can save the day.
There's just one problem: He worries he can't. Jon Scieszka's latest
racing and rollicking installment to the Trucktown franchise is a
hilarious (and maybe even a little heartwarming) look at all the things
a cement mixer can do...no matter how much he worries!