In the distant future, a large portion of humanity lives on Mars, in cities that resemble those once found on Earth. The cities are protected from the inhospitable Martian atmosphere by dome-like force-fields. When a massive sandstorm breaks through the dome and destroys Mars New York, those in Mars Los Angeles must figure out how to stop the storm before it wipes them out next.
A giant beanstalk brings Jack to a land in the clouds filled with snarling, evil beasts. When the creatures make their way to the ground, Jack must figure out how to get back down before they destroy earth and everyone in it.
Sophie's 18th birthday becomes a bloodbath when monsters descend upon her house and start to devour the party guests. Sophie and her friends must rally together to send their party crashers back to hell.