Lost Over The Inlet (S01E05)

Shaun Williams, a newcomer to the area, receives a call late at night about a plane that has crashed into a nearby bay. By morning, the aircraft has sunk beneath the surface of Knik Arm. As rescue teams and helicopters work to retrieve the wreckage, Williams investigates the reasons behind the plane's sudden descent just two miles from its destination. When the wreck is finally brought to the surface, the NTSB eliminates mechanical failure as a cause, leaving the potentially faulty GPS as the sole clue that could unravel the mystery surrounding the tragic accident.