Following his uncle's mysterious death, Alex Rider begins a quest for answers that leads him into a dark world of secrets and espionage. He comes to realise that his uncle wasn't the man he thought he was – and that Alex himself is expected to follow in his footsteps.

Alex is thrown into the unfamiliar world of the ultra-rich as he struggles to perfect his cover identity, but risks alienating his best friend Tom by keeping the mission a secret.