Nero Power

Greenback has invited Dangermouse and Penfold to an old deserted funfair to meet under a flag of truce. Naturally they suspect a trap. Indeed, the villainous toad plans to fire his GB funfair finding, appointment keeping, mouse seeking, Thrissile Missile at the world's greatest detective and his not so very good assistant. However, he did not foresee his pet caterpillar Nero would get too close to the missile and gains super powers