Epoch is a 2001 science fiction film directed by Matt Codd, starring David Keith, Stephanie Niznik, Brian Thompson, and Shannon Lee. In it, a strange monolith is discovered, and the team sent to study it encounters repeated disasters.
Alarmed by the electromagnetic phenomenon and under request of the government of Bhutan, the American NSA launches a military and scientific reconnaissance operation on site, led by Dr. K.C. Czaban Stephanie Niznik with the technical assistance of terminally ill engineer Mason Rand David Keith, picked up on the Mexican border in time for the mission. The team finds the artifact suspended in the air and object of veneration from the natives, who call it the Torus and consider it a gift from the gods with extraordinary healing properties.The US team enters the Torus, but an air strike by the Chinese Army against the artifact prompts an unexpected response from the object, which destroys two Chinese military planes and kidnaps a US soldier. Unsuccessful diplomatic negotiations escalate the tension in the area between Chinese and US armed forces, while inside the Torus the scientific team goes to the core of the huge machine. They discover how ancient the artifact is and speculate it could have been the spark of life on Earth, as well as the cause of multiple extinctions in the course of the eras. Fomented by NSA agent Allen Lysander Ryan ONeal, conflict explodes between the troops of the two factions and the Torus reacts, blanketing the planet with a thick cloud cover, evidently starting the process for a new mass extinction. ........
Source: Wikipedia