Alex Rider is an ordinary teenager enlisted to work on behalf of MI6, where he uses skills he didn't know he had to become an extraordinary spy.

Fi Lawson arrives home one day to find a family of strangers moving into her house and her husband, Bram, has disappeared. As the nightmare takes grip, both Bram and Fi try to make sense of the events that led to a devastating crime and how they each are going to survive the chilling truth.

Will Scott, one of the FBI's leading crypto-analysts is hired to crack a heavily coded document. He soon discovers it's a hit list, putting him in the cross-hairs of the bad guys who want it back. Will must navigate the murky waters of loyalty and betrayal amongst an underground ring of hackers, hit men, and FBI agents - all as the clock ticks in pursuit of the latest targets.

A dark entity attracted to sound lurks in the shadows, hunting the remaining survivors of a small town trapped in an industrial estate.