Our Flag Comics #4 (1942)

In "null," Capt. Blake and his mechanic, Rusty, are called to action when a ship in the Panama Canal needs freeing—only to be diverted when a plane carrying Blake’s father and crucial intelligence vanishes over the Amazon. Now racing against time through dense jungle and unknown dangers, Blake must balance the mission with the urgent search for his father, all while the weight of the mission—and the past—presses close.

In "null," Karl Von Monsta unleashes a chilling campaign along the flood-ravaged Mississippi River, using an army of enhanced Nazi-trained soldiers to carve America in half. As the nation teeters on the brink, one lone figure stands between chaos and collapse.