In 1996, a high school girls' soccer team called the Hornets from New Jersey High School traveled to Seattle to compete in the National Championship when their private jet crashed into the depths of uninhabited wilderness while flying over Canada. The surviving team members ended up surviving in the wild for 19 months. Twenty-five years later, survivors who have endured physical and psychological trauma find that what happened in the wilderness is far from over.
Ostensibly, Shirley (Jennifer Garner) is an ordinary college graduate student, but in reality, she has worked for multiple ccc for a secret intelligence organization called SD6. When she married her boyfriend, Shirley decided to reveal her true identity to her, but her boyfriend was assassinated by the organization's security personnel. In a fit of rage, Shirley chose to "strike" and was later wiped out. In the midst of the crisis, Shirley learns that her father Jack (Victor Garber) is also a secret agent like herself, and that it is not a state organization that supports SD6 behind it, but a reactionary element with powerful force. In private and public, Shirley and SD6 have a common enmity, she returned to SD6, but at this time, Shirley's identity has been upgraded to a double agent working for the CIA, in the midst of danger and trials, Shirley has only one task, that is, to completely eradicate SD6.