A multi-ethnic family with a mix of foster and biological kids are being raised by two moms. Stef Foster, a dedicated police officer, and her partner Lena Adams, a school Vice Principal, have built a strong family with Stef's biological son from a previous marriage, Brandon, and their adopted twins, Mariana and Jesus. Their lives are turned upside down when Lina meets Callie, a teen with an abusive past who has spent her life in foster homes. Lena and Stef decide to welcome Callie into their home thinking it will be temporary.