Gabby Duran, babysitter extraordinaire, was on her way home from sitting for a famous action's star's rambunctious triplets when she was approached by a mysterious woman with her first mission: a babysitting job with a more lucrative rate than she'd ever received. What child could possibly be so difficult to handle? Gabby was soon trusted with the truth - aliens are living among humans on Earth. Even extra-terrestrial parents need a sitter now and then.