Harry and Valerie Spalding arrive in the remote Cornish village to an unwelcoming and suspicious population. Harry’s brother dies suddenly, bitten by a lethal reptilian bite. They befriend a young woman Anna whose tyrannical father controls her life and, as they discover that others in the village have suffered a similar fate, their investigations lead to Anna. What they uncover is a victim of the most terrifying legacy… a destiny of mutilation and murder.

Set in northern Australia before World War II, an English aristocrat who inherits a sprawling ranch reluctantly pacts with a stock-man in order to protect her new property from a takeover plot. As the pair drive 2,000 head of cattle over unforgiving landscape, they experience the bombing of Darwin, Australia, by Japanese forces firsthand.

Zero-X, a manned exploration mission crashes during lift-off on its maiden flight. Two years later an investigative committee finally concludes sabotage, and decides to call on the services of International Rescue to oversee security at the impending second launch. The second Zero-X successfully reaches its destination, but encounters unexpected hazards, ultimately leading to another call for assistance on its return to Earth. International Rescue respond, and once again Thunderbirds are GO!