Best friends Ashley Sanchez (Ash) and Ashlee Taylor (Lee) agree that being a sister can be tough. What they don't agree on is which of them has it tougher. When they both argue that their situation is worse, the two girls decide to switch places for a day. Ash can't wait to spend time with Lee's cool older sister, Mallory. Lee is excited to bond with Ash's adorable baby brother, Sam. But when the sibling swap doesn't go as expected, will Ash and Lee still wish to trade places?

Opposites go together. Just ask Ashley Sanchez (Ash) and Ashlee Taylor (Lee), who have been best friends forever. Ash is messy as can be, and Lee likes things neat and tidy. Ash loves sports and Lee prefers dance. Ash doesn't like chocolate, but Lee could eat it all day long. Ever since they were born, Ash and Lee have lived in the same apartment building, just across the hall from each other, but now that's about to change. When Lee moves a few blocks away, will the two girls find a way to stay best friends forever?

Feeling torn apart by the Taylor family's recent move, best friends Ashley Sanchez (Ash) and Ashlee Taylor (Lee) set out to find an activity they can enjoy together. Being so different from one another, this isn't as easy as it sounds. Ash wants to teach Lee some basketball moves, while Lee hopes to share her love of art with Ash. But sharing their hobbies doesn't go as planned, and soon Ash and Lee worry that they will never find the perfect activity for the two of them.