It's May 4th, 1864 -- Lieutenant General Ulysses S. Grant and Major General George Meade have moved the vast Army of the Potomac across the Rapidan River and into the fabled Wilderness. Now at the end of their first day, the Union Army believes they are miles away from any real danger. When they wake on the morning of May 5th, 1864, they will soon discover a very different and dangerous situation that has emerged from the mystifying woods of Northern Virginia.