Mia was born to Caliban and Cordelia Gale who was their last child together.
During the house fire at Albion Manor, Mia was trapped inside the home where her mother sacrificed her life to save her. Only Mia remembers this event and hasn't told anybody because she feels responsible of her mothers death. Her grandparents were soon her legal guardians.
Mias grandmother, Contessa passed away a year later after a stroke in the family home.
Mia began dating Puck.
Mia was present when Puck was shot on their second year anniversary at Wallis Cinemas. After analyzing that night millions of times, she soon realized that the person who shot him was actually his long lost brother, Finn.