The Mob rob the mail ship of Limbo on a tip from Grod the informer of a rock that he says is worth a lot. After, Hardware's analysis and determination that it is worthless, Mon-Star promptly ejects Grod and the rock into deep space. Only to find out later from Mo-Lec-U-Lar that the rock is priceless because it is the only thing that can save planet Earth from catastrophe. Can the Silverhawks get the rock back and save the Earth in time? Find out on Silverhawks.