Cole Foster accepts an assignment to protect Zara Sterling, and they have a one-night stand. Zara's cancer drug attracts covetous attention. Cole protects her from family schemes, business rivals, and overseas organizations. They develop feelings. Cole's identity is unveiled; he is a fighter and Miracle Doctor. Cole helps Zara thwart Lily Sterling and Jayden Croft's conspiracies, securing the drug's core technology. They get together.