From the box:
Be the first Mad Scientist to control four of the seven continents and you win.
This devilishly clever two player card game will challenge your strategic interests as you battle for world domination. The seven cards in your hand are numbered 1 to 9 and include special effect cards that may tweak the rules to your benefit. Place a card on the continent that brings its value to ten and you control that continent, but beware of giant robots guarding your opponents interests.
Sounds simple but watch out for cards like the Radioactive Randomizer, the Dreaded Duplicator and the Sinister Shuffler. They might change everything.