After his alien Nexi were thoroughly trounced, the ever-madder Merk commissioned four new human Nexi -- who, of course, have also turned out to be complete psychos and are leaving trails of fusion-induced death behind them. Now it's up to Horatio, Sundra, and their fun-loving pal Judah "Hammer of God" Maccabee to stop these stellar scourges and get rid of the Merk. It's a titanic task, but our hardy heroes do have a little help from a friend -- one who bears a striking resemblance to the Merk!