An all girls slumber party is invaded by turn of the century trick 'r treaters from beyond the grave at the behest of a vengeful witch.

Joe Alien fulfills a dream of coming to Earth to find that it's overrun by zombies. Finding an ally in young Parker, he attempts to save the world!

When Sherri gets arrested for shoplifting from work, she needs to find money for legal fees. Opportunity strikes, and his name is Tom.