More details have been released on three of the five upcoming Infinity Countdown titles announced earlier this week. The Daredevil, Captain Marvel, and Darkhawk tie-ins will each touch on that character's impending involvement with one of the Infinity Stones.
Infinity Countdown writer Gerry Duggan is working with Chris Sprouse on the Infinity Countdown: Daredevil one-shot, where Matt Murdock runs across the Mind Stone and must keep it out the hands of someone "mysterious yet unlikely."
The Infinity Countdown: Captain Marvel one-shot will continue the story from Margaret Stohl's recent Captain Marvel ongoing with Carol remaining in the clutches of Nebula and Thanos - whom together posses the Reality Stone.This one-shot is written by Jim McCann and drawn by Diego Olortegui; Stohl previous said Captain Marvel was on hiatus but would return with her - it is unknown if that is still the case beyond this Infinity Countdown one-shot.
And lastly, Infinity Countdown: Darkhawk will be a full-fledged four-issue series by recent Darkhawk #51 writers Chris Sims and Chad Bowers, with artist Gang Hyuk Lim. This continues Darkhawk's recent storyline in Guardians of the Galaxy (by Duggan) with Darkhawk warring with the Fraternity of Raptors over the Power Stone.
There were no details on the other two Infinity Countdown tie-ins, Black Widow and Champions.