Collects Daredevil (1964) #22-41, Annual (1967) #1, Fantastic Four (1961) #73 and material from Not Brand Echh (1967) #4.

Stan Lee and Gene Colan unleash an identity crisis as Matt Murdock juggles his triple identity as Daredevil and his own "twin brother" Mike Murdock. You might need your slide rule to track the trigonometry of Marvel's Man Without Fear's mixed-up life. And as if that weren't complex enough, Daredevil experiences a body swap with Doctor Doom in one of comics' first crossovers! Other highlights include guest appearances by Spider-Man, Thor and Ka-Zar; the introduction of fan-favorite villain Leap-Frog; and the debut of the Emissaries of Evil. It's a series of action-packed extravaganzas so hazardous that all our cast won't all make it out alive!