Duffy, Andrew, and Marie are going to a cabin to do some "Man stuff with their mom and aunt." (Camping)
Beware the sentinel
They arrived at a junky old house, and cleaned it up. They see a sign that says beware the sentinel. After that they go for a walk in the woods.
During their walk, Andrew hears a creature following them. They get back to the house, and they realize that they left Duffy's jacket in the woods.
Beware the Sentinel
Andrews mom and Aunt leave to go to town that night and leave Andrew, Duffy, and Marie at home. They hear a scratching noise at the door and see a huge creature at the door. They creep out the back door and head to the barn.
After they creep out to the barn, they see a huge padlock on the door. They run back to the house, then run upstairs. They see a piece of cloth in its hand and realize its Duffy's jaket.
The creature gets their scent and he heads back to the house. He breaks down the door and heads upstairs to where you they are. He breaks down that door, walks in looks at them. He gives back the jaket and walks out.