Not so long ago... from the far off kingdom of D-OR... lived a brave and virtuous mouse using comically oversize ears who dreamed to become a knight. Banished from his home to having this exalted aspirations, Despereaux puts off on an incredible adventure with his good hearted rat friend Roscuro, that directs himat long last, on an extremely noble quest to rescue an endangered princess and rescue an entire empire out of darkness.