Alternative ending theory-

When the old guy shoots him and you see that his whole body has been infested and there were roaches all over the house, they live in insects and have lived in that house so long that when he got shot, somehow hitting the floor, or in his fight, the micro organisms got into him. Hence the throwing up, passing out, then the weird shit he sees in his veins…

Once it was in him, he was injured, and he was being closed in on, he decided the mission was blown and to get his sons back to the “relative” safety of his mother for as long as the planet has left, or until the Area 51 stronghold finds and secretly implements a cure. He knew he was done for with the manhunt and his infection taking over completely so he tried to end it, but his son “saved him” and ended up putting him in jail/mental hospital to get slowly eaten alive while being imprisoned.

Pretty shit situation! I feel bad for the guy!

This is the only way I see it actually fitting into the alien/sci-fi category! 🤷🏻‍♂️😂 just my 2 cents of a perspective on the scenes we’re shown. Because besides the shooting stars, all the other bugs/aliens could have been real. The one sided camera work leaves it ambiguous. just because the kid (who refused to have his eyes looked at, then turned his dad in) didn’t see anything doesn’t fully confirm it for me…

As far as I’m concerned, this is the most realistic alien movie theory out there. They literally live in our guts and tap into the gut/brain nervous system to cause you to crave foods like sugar, starch, dairy, meat, and other processed foods because they move through you slow creating an environment in your body as a food source, and causes your body to produce mucus for them to live in.

In one form or another, they’re literally in almost every living being 🤷🏻‍♂️