Factual error: After Alex is dragged underwater by the harness tether, Scott goes swimming after him and easily locates him. Given that they are in the middle of the ocean at nighttime during a heavy rainstorm, and Scott is wearing sunglasses, it would be way too dark below the surface to see anything.
Factual error: The map of the western United States shown during the weather report at the start of the episode shows some states drawn incorrectly. Idaho's entire western border is a straight line, whereas in real life, Oregon has a horn-shaped indentation on its northeastern border that it shares with Idaho. Idaho also looks like a crude staircase, with the southwestern border of Montana going down to central Wyoming, whereas that area in real life is around the northwestern part of Wyoming.