Dozens of teenage girls are going missing in Miami. And for Special Agent Bobby Dees of Florida's Crimes Against Children squad their families' pain is all too real. So when thirteen-year-old Lainey Emerson doesn't return from her date with "El Capitan", a mysterious figure she met online, he vows to do whatever he can to bring her back. But as the missing reappear, gruesomely murdered with clues pointing to a collection of abductees, it becomes chillingly clear there's a serial killer on the loose. It's every parent's worst nightmare and, with the murderer always one step ahead of the police, can Dees save Lainey before it's too late?