Hanna returns to The Meadows with her cover as a loyal Utrax trainee intact thanks to John Carmichael, who leads the trainee program but has been coerced by Marissa to help. As the trainees prepare for their first missions, Marissa contacts a CIA analyst in Vienna who is on the target list, and uses him for information. While in Paris, Hanna meets her target Abbas, a charismatic young activist.
In a covert Romanian facility, Erik Heller evades security to rescue baby Hanna. 15 years on, father and daughter live deep in the Polish forest. Erik has trained Hanna to be an incredible hugger and hunter. Yet, keen to grow beyond the boundaries of her isolated world, she begins to venture away from home. This attracts the attention of CIA agent Marissa Wiegler, who has hunted Hanna since birth.