I watched this last night by mistake, and can confirm, its garbage. The most irritating plot hole is that this guy isolated on an island and prepared for any eventuality including a beach invasion, somehow doesn't have a bit of pennecilin in case of an accidental cut and infection. I downloaded it by mistake because I was trying to get Shelter (2014) with Jennifer Connolly. Then searching it on the bay, I realized how many movies that were called Shelter or have shelter in their name. There's at least 4 called Shelter, 2 called The Shelter, and a bunch of others.