After defeating France and imprisoning Napoleon on Elba, ending two decades of war, Europe is shocked to find Napoleon has escaped and has caused the French Army to defect from the King back to him. The best of the British generals, the Duke of Wellington, beat Napolean's best generals in Spain and Portugal, but now must beat Napoleon himself with an Anglo Allied army.

Sylvester Cat has caught and eaten every messenger the Mexican revolutionary mice send to General Gracias. So, Speedy Gonzales is summoned to outwit and outrun Sylvester and reach the General with an important message, which turns out to be a birthday greeting!