Melody and Briana are siblings now, but that doesn't make their lives perfect. Briana is stuck as her Little self, while Melody can't get away from their abusive girlfriend.

Christmas is coming, which means Briana needs to earn Santa Points fast, to make up for her disaster at Thanksgiving. She needs to find a way to do that while helping her sibling.

What Melody really needs to do is learn to accept help from somebody - anybody. Even having Briana as a sister may not be enough for Melody to learn to trust.