"In spirit, the original Star Trek was opposed to war and nuclear weapons. However, it could not help sketching a universe in which opposing alliances resorted to espionage, gunboat diplomacy and covert operations. That Cold War influence came across in a different way 25 years after the series debut in Star Trek VI: The Undiscovered Country, the last Star Trek movie featuring the full original crew. An exploding moon-based power station — shades of the Chernobyl nuclear disaster — leads to an economic and environmental crisis in the Klingon Empire."