Still struggling from her mum's death, Kaylee is sent away from all she's ever known to move into a mansion with her father and brother she never knew. Kaylee escapes into her spy books... and then finds out that her new brother is also a sleuth fan. Together they have fun with the spy toys until she finds out their toys might be the difference between life and death. Secrets are hiding within the walls of this mansion. And Kaylee is determined to uncover them...