When existence itself faces extraordinary threats, it needs an extraordinary defense! That's when you call...THE DEFENDERS! DOCTOR STRANGE and the MASKED RAIDER take a non-team of Marvel's weirdest, wildest heroes on a mission that will uncover the hidden architecture of reality itself! This cosmos was not the first to exist...but if the DEFENDERS can't track Marvel's oldest villain through the deepest trenches of time - it might be the last!