From visionary filmmaker M. Night Shyamalan comes a thriller about a tight-knit family who are taken hostage by four armed strangers while vacationing at a remote cabin. The visitors, led by Dave Bautista (Guardians of the Galaxy ), demand that the young girl and her parents make an unthinkable choice: to save their family or save humanity.

• Deleted Scenes - They Need Some Time / Going to Church / Enjoying the Sun / Leonard Explains]
• Chowblaster Infomercial - Extended
• Choosing Wisely: Behind the Scenes of KNOCK AT THE CABIN
• Tools of the Apocalypse
• Drawing a Picture
• Kristen Cui Shines a Light