When the universe's greatest villain returns in a terrifying new form, old adversaries, the Reds and Blues of Blood Gulch, will have to set aside their differences to save the galaxy one last time.

This All Hallows’ Eve, Nightmare is bent on conquering our waking world by crossing through the Dream Dimension, and converting each dreamer into a monster. Can Dr. Strange, Hulk and the Howling Commandos hold the line and put an end to his nefarious scheme?

In the late 19th century, Mack, a heroic outlaw who stole from the rich to give to the poor, was loved and respected by the people, but he had long been a difficult case for the Yard. With the help of Sherlock, detective Gordon Gorilla Riller and Carlson Fox finally managed to catch Mack at his daughter Katie's birthday party. But Sherlock was then reviled by the people for arresting their hero. Four years later, Mack fights with the notorious Scarface in prison, and then climbs over the wall to escape. While tracking down Mack, Sherlock discovers Mack's heart-breaking reason behind his escape, and decides to let him fulfill his final wish before he would voluntarily surrender to the police. However, Scarface suddenly appears and kidnaps Katie. Sherlock and Watson team up with Gordon Gorilla Riller and Carlson Fox for the rescue. A battle between life and death is unfolding.