Max is perfectly content to be the only cat in the house. His family loves him and takes care of him, which is all that he needs. Why mess with perfection?So when a surprise new kitten named Abby arrives on Christmas Eve, Max is very upset. He is supposed to be the favorite (and only) cat in the house So he comes up with a plan (...and another...and another...) to get Abby out of the house once and for all. But then suddenly Abby is in trouble, and it's up to Max to save her. Max soon learns what matters more in life, which is the gift that keeps on giving.