A 16-year-old girl, clever and somewhat sarcastic, faces an unexpected twist in her life when she discovers she is pregnant after a casual encounter. With her one-night stand, the restless Paulie Bleeker, overflowing with emotions she doesn't know how to handle, Juno decides that she is not ready to be a mother. Instead of opting for an abortion, she chooses to give her baby up for adoption and begins searching for the ideal couple who can provide the future she believes she cannot offer.
Juno finds an seemingly perfect couple: Vanessa and Mark Loring, who desperately long to be parents. As Juno delves into the adoption process, she begins to form bonds with this couple, but she also confronts her own feelings and the reality of what it means to be a mother, even if indirectly. The situation becomes complicated when Juno's life and that of the prospective parents start to intertwine in unexpected ways, revealing the complexities of parenthood, relationships, and tough choices.
With a brilliant script filled with witty dialogue and a unique visual style, this story touches on themes of adolescence, love, and the search for identity, all while the protagonist moves forward with a mix of humor and honesty. Ultimately, Juno's journey becomes a true self-discovery and reflects what it really means to lead a life of responsibility.