State trooper Robert Tower is on his last day of work before retirement when his new replacement, Mayberry, arrives. Despite the fact that Tower enters Silent Hill on a regular basis to look for missing people, he's never been exposed to the horrifying creatures that roam its streets. However, to play a prank on Mayberry (a firm believer in not only the lore of Silent Hill, but also several other conspiracy theories and supernatural concepts), he stages a "monster" attack with two other officers.
Unfortunately for the men, there is a new force in the town of Silent Hill — a smiling madman with a mastery of both magical spells and firearms who considers the city his own personal hunting ground. The truth about the city is exposed to Tower and the showdown between himself and the mysterious Grinning Man ensues.