Fifteen year-old Lux has spent her life going from foster family to foster family. She has finally decided to become an emancipated minor. During her journey through the legal maze, Lux finds her biological father, 30-something Nate "Baze" Bazile, who lives above a bar and is astonished to learn he has a daughter. Lux learns that her mother is Cate Cassidy, a star on local radio, along with her boyfriend, Ryan Thomas. A judge decides to grant temporary custody of Lux to Baze and Cate instead of emancipating her.

So basically the premise of the show:

Man doesn't know daughter exists. Mother gave up custody without his consent or knowledge. 15 years later, she walks back into court, wanting to be on her own, the judge in its fucked up wisdom forced the biological parents to take custody of their kid, 15 years later.

Oh and the father can't get custody.