Dog with a Blog (2012)

S02E07 Twas the Fight Before Christmas

Title: A Holiday Tussle Plot: Ellen's egotistical sister unexpectedly arrives after her flight to Hawaii is postponed, leaving Avery to assist their mom in managing the awkward situation. Meanwhile, Stan, Tyler, and Chloe are on a mission to secretly keep a stray dog named Sparky hidden in their home as they prepare for the holidays.