When everyone is holed up in the barn during the hurricane, the doors are blown open and the wind rushes in. But the doors are blown outward and into the wind. If the wind was blowing in toward the barn, then the doors would either be blown to their closed position or be blow open toward the inside of the barn. But if there is a wind blowing inward, then the doors could NOT be blown out and into/against the wind.
This show takes place during a hurricane near the Gulf Coast. Though there is plenty of wind, there is NO rain. If the wind is this constant/stable, then this location must be near the eye and therefore there should be rain with bands of torrential rain fall. Instead there are waves of dust in the wind, revealing that dust is being dumped in front of the big fans that are creating the wind. Further, with all the rain that a hurricane dumps there can not be any dust. The rainfall would make that dust mud. So, no rain but dust in this hurricane, and that has NEVER happened.
Kimble asks if someone in the barn will donate their blood for Gerard. No one responds and Kimble states "If he doesn't get blood, he will die." When he states this, the camera scans everyone in the barn then goes to Gerard, who's eyes are open, blinking even, and he has an apprehensive look on his face. But if the situation was as dire as Kimble stated, that Gerard had lost so much blood that he was dying, Gerard should have been unconscious. When Kate finally agrees to give Gerard her blood, Gerard is still conscience and moving, which is peculiar for someone who should have been out cold, if not comatose.
The setting of the story is some location twenty miles north of the Gulf of Mexico. When the workers are shown out in the fields there are several shots of mountains in the background, which are not found anywhere near the Gulf coast.
When Kimble asks people to donate blood he only states that Gerard's blood type is type B, without mentioning the necessary Rh factor, a critical point he shouldn't have ignored. (If Gerard's blood type is B- he could easily die if the donor is B+.) Alternatively, Kimble could have asked for blood type O-, which is universally acceptable by everyone, regardless of their own blood type. Furthermore, Kimble states in Joshua's Kingdom (1966) that his own blood type is O-. He could have donated his own blood.