In the climax of the movie, Megan Walsh (Hailee Steinfeld), a teenage special ops agent, decides to leave the world of espionage and live a normal high school life. She escapes from the government facility where she was trained and assumes a new identity as a high school student.
In the resolution, Megan tries to adapt to the typical challenges of high school, including making friends and dealing with romantic interests. However, her former handler, Hardman (Samuel L. Jackson), along with other agents, is determined to bring her back into the world of espionage.
As Megan navigates the complexities of teenage life, a final confrontation occurs between her and the agents. In the end, Megan manages to outsmart and defeat the agents, reaffirming her commitment to living a normal life.
The film concludes with Megan embracing her newfound freedom and choosing to live as an ordinary teenager rather than continuing her career as a special ops agent.
In summary, “Barely Lethal” ends with the protagonist successfully leaving the world of espionage behind and embracing a more typical teenage life, highlighting themes of self-discovery and the pursuit of a normal existence.