David Ormont

U.S. Air Force aviator Jim Shannon is tasked with escorting a Soviet pilot claiming -- at the height of the Cold War -- that she wants to defect. After falling in love with and marrying her, Shannon learns from his superiors that she's a spy on a mission to extract military secrets. To save his new wife from prison and deportation, Shannon devises a risky plan.

While watching for a planet that may collide with earth, scientists stationed in Scotland are approached by a visitor from outer space.