Professor Mason is a scientist with two very deadly weapons. The first is a time machine, which gives him access to the entire panorama of history. The second is the King of the Monsters, whom Mason is using to terrorize the past! It's now 1588, the year of the Spanish Armada's ill-fated attack on England. Unless G-Force -- with a little help from William Shakespeare and Sir Francis Drake -- can find Mason and stop Godzilla's rampage, all of history will be altered and the world we know will cease to exist!