Readers can download Mark Waid's debut issue through comiXology.
The veteran Kingdom Come writer's relaunched title was awarded multiple Harvey and Eisner Awards over the summer.
The critically and commercially successful third volume in the series debuted last year, starting star Matt Murdock on a more upbeat path than the title has walked in recent decades.
The first issue features artwork by former series artists Paolo Rivera and Marcos Martin.
Waid's title will continue with him at the helm through the creative shake-ups of the Marvel NOW! initiative. He will also be working on the new Indestructible Hulk title with Leinil Francis Yu.