The Yestertime Shift

Keith Miller, an urban explorer, leads groups into abandoned buildings, but their latest adventure takes a dangerous turn when they stumble upon a mysterious time portal. As they find themselves transported to 1917, former time traveler Ray Burton becomes involved from afar, only to discover that the portals are malfunctioning. Tensions rise as the travelers confront unexpected threats, leaving them to wonder if they will survive their perilous journey through time.