The Indiana Jones 5 movie begins in Mongolia. It's 1959. Indiana Jones and his guides are searching for the lost burial tomb of Genghis Khan, the legendary leader of the Mongol Empire. Indy Jones eventually finds the clandestine tomb along with an immense treasure, buried with Genghis Khan, beyond what anyone would ever believe.
Unfortunately, for Indiana Jones, the Communist Chinese military has been keeping Indiana Jones under surveillance. The Chinese capture Indy Jones and seize all the contents of the final resting place of Genghis Khan. The Chinese take Indiana Jones to a place where they show him clues, which reveal a great mystery involving the alleged location of the holy cross the Romans utilized to crucify Jesus Christ.
Before Indiana Jones can fully examine the info, a group of elite British commandos raid the facility where Indy Jones is being kept. Ironically, the British military had the Chinese under surveillance. In a bold and daring rescue mission, the British commandos take Indy Jones and the clues related to the holy cross from the Chinese.
The British commandos and Indy Jones arrive in London, England. The English then explain to Indy Jones what is going on. They tell Indy Jones that British intelligence discovered the Chinese had found clues in Jerusalem regarding the holy cross of Jesus. The British explain the legend surrounding the holy cross that it can bring a golden age for Humanity or the final apocalypse.
Since Indy Jones is regarded as one of the top archaeologists in history, the British want Indy to help them find the holy cross before the Chinese find its location. To reward the British for saving him from the Chinese, Indy Jones agrees to search for the holy cross. The British assign a British commando named Nevin to accompany Indy during his travels around the world.
This new adventure first takes Indy Jones and Nevin to Jerusalem. Several clues then lead Indy to Russia, France and finally to the hidden caves of Romania where the holy cross of Jesus Christ has been kept secretly for nearly 2,000 years. Indiana Jones 5 ends with a spectacular confrontation between the British military vs. the Communist Chinese military. The tremendous supernatural powers of the holy cross are released and the fate of the planet is at stake.
(A complete Indiana Jones 5 plot script summary will be revealed in the future with further details.)