CreepyPasta: Tame the Beast

A family of killers go on a camping trip, but little did they know a surprise was waiting for them. Someone decides to open up a portal to a dangerous war part of the past to retrieve something that was lost. They brought back other things that aren't suppose to be among the human kind. Will these things be able to adjust, or will they destroy everything to finish what they started years before? One of the many monsters that escape seems to be in between adjusting and going completely wild. Will they be able to tame it? Can it destroy everything that mankind has worked so hard to develop over the years on its own? Can It change?