In the earth year 2024, a synthetic microbe is created that threatens to wipe out the human race. Desperate to prevent the organism from destroying all life, the U.S. Government asks the scientific community to submit proposals to head off the disaster. One of the many plans selected for funding includes a project inspired by Albert Einstein's ideas on time. Dr. Henry Grey, a theoretical physicist, is convinced that the space-time continuum can be altered to undo past mistakes. He only needs an orbiter capable of breaking the cosmic speed limit. A team of engineers quickly constructs an experimental spacecraft that they hope will reach the velocity of light. Things go terribly wrong when a second group of scientists try to sabotage the mission. Dr. Grey is quickly running out of time and ideas as the consequences of his project threaten to annihilate the planet. The scientists quickly discover that paradoxes are not the only thing to fear when humans attempt to manipulate time.