In 1986, on
Orcas Island in
Washington, Lou is a loner living with her dog Jax, who goes to the village to buy some supplies. The sheriff talks to her about a copper bracelet that could help her arthritis, as it helped him. A mother, Hannah, plays hide-and-seek with her young daughter Vee outside their home. Her landlord Lou stops by on her way back home to remind her rent is due the next day. A large storm is predicted so Hannah's male friend Chris offers to buy supplies. It begins to rain as Chris heads home in his van. He picks up a hitchhiker who kills him. The hitchhiker then cuts power to Hannah's home. While she is outside trying to restore it, he kidnaps Vee and flees with her on foot. Hannah runs to Lou's house, interrupting her suicide attempt, and tells her that Vee is missing. Before they can leave, Lou's truck blows up from a bomb set by the hitchhiker. Eventually, Hannah and Lou set off tracking him and Vee into the night during the storm. Hannah informs Lou that the hitchhiker is Vee's father Philip, a former
Green Beret and war criminal she thought was dead. Lou finds and kills Philip's friends on the way, clearly showing she is more than she appears to be. She explains to Hannah that she spent 26 years as a CIA field agent. Lou and Hannah track Philip and Vee to the beach at Eagle Bay. Lou sends Hannah to radio for help, while she goes to confront Philip and rescue Vee. After a standoff, it is revealed Philip is actually Lou's son, who tracked them down after she turned him in, and hid Hannah and Vee to protect them. It is also revealed that Lou abandoned him as a child to avoid blowing her undercover mission in Iran. Philip injures Lou and leaves with Vee, intending to kill all of them together. Hannah contacts the sheriff, but a call from the
United States Marshals Service forces him to stand down, as it is now a federal case. The sheriff goes to Eagle Bay nonetheless, where he finds Lou and gives her a copper bracelet. Meanwhile, Hannah arrives at the lighthouse and manages to get Vee away from Philip. After a scuffle, Hannah injures Philip and flees with Vee. Lou finds the lighthouse filled with explosives and sets them off from a distance, destroying it to signal an approaching CIA helicopter. Lou and Philip fight on the beach, until she gains the upper hand and hugs him. She apologizes as a CIA agent fires on them, and both Lou and Philip go under the water's surface. Later, Hannah and Vee are shown in Lou's house, packed up and ready to leave. After a few questions from CIA agents and a goodbye from the sheriff, they are seen on board a ferry with Jax, who looks at someone on the upper deck, not fully in frame. The camera shifts to show a woman's arm with a similar scar as Lou's and a copper bracelet, as she watches Hannah and Vee through binoculars. ==Cast==