Zero-X, a manned exploration goal crashes throughout lift-off on its initial trip. Two years later an investigatory board finally ends sabotage, and also makes a decision to get in touch with the services of International Rescue to supervise safety and security at the upcoming second launch. The second Zero-X effectively reaches its destination, yet encounters unexpected dangers, inevitably leading to another require support on its return to Planet. International Rescue respond, as well as once more Thunderbirds are GO!