Alia Carrington didn't grow up with a father, barely remembered her mother. She was put into a foster family and that was the end of her story. Or so she thought. Being raised by a foster dad, 14 year old Alia didn't have anyone else. Her mother died when she was 6 and her father was never known, or in reality was never told that he was in fact a father. For years she tried to track him down, but any remnants her mother left, had not a single thing. One case changed the lives of not only Alia and Jay, but Intelligence and 51. The second she took the last name Halstead, the SECRET her mother hid came out, and Alia was in for a big surprise.