11-year-old Davey has retreated into a world of video games and an imaginary hero-pal. When an FBI agent about to be murdered slips him a video cartridge containing top-secret data, Davey is plunged into the intrigue and danger of real-life espionage.

Five years after his first deadly adventure, Rollie Tyler has left the special effects business and now designs sophisticated electronic toys for a living. But when his gilfriend's ex-husband, a police detective, persuades him to devise an illusion to capture a serial killer, Rollie is once again lured into the lethal world of make-believe. And soon, he finds himself trapped in a murderous maze of deceit and treachery in which he must depend on his...

Determined to prove the existence of 'The lost world', dashing adventurer and scholar Professor George Challenger mounts a British expedition team of consisting of a mismatched group of enthusiasts, all with less than selfless reasons for making the journey. Traveling through the uncharted Amazon jungle to this prehistoric plateau, the group encounters tribal head hunters, vicious apemen, giant crocodiles and terrifying dinosaurs.