In 1997, 11-year-old Jesse finds a mysterious staircase in the woods and disappears - - 20 years later, a group of hikers sets off into the very same woods. Unfortunately for them, they come face-to-face with the very same set of stairs...

Facing mounting odds, a small but determined band of American soldiers venture into dangerous enemy territory on a mission to stop an advancing German unit from breaking through the Allied line.