The series, written by Cullen Bunn with artwork by Will Sliney, centered on the Valkyrior, a team of female superheroes led by Valkyrie and Misty Knight.

In May 2012, writer Cullen Bunn stated that the concept of the series came to him while scripting the fifth or sixth issue of Fear Itself: The Fearless, which also starred Valkyrie.

[4] Hippolyta, who died in The Incredible Hercules #121 (September 2008), returned in issue #2 under the moniker "Warrior Woman" and received an updated look and power set.

Bunn also said he wrote two versions of Hippolyta's confrontation with her father Ares; the first was darker and less action oriented but decided to go with the second as it better reflected the spirit of the series.

"[8] Issue #6 also featured the death of Annabelle Riggs, who Newsarama called "one of Marvel's few prominent lesbian characters", which drew a strong reaction from fans.

Sales of the series steadily declined since its debut in February 2013 and reached its lowest point in September, selling 15,840 units.

"[12] In the North Atlantic Ocean, Misty Knight stops some mercenaries from smuggling ancient Asgardian artifacts, though they manage to get away with their primary target.

[14] The All-Mother teleports Valkyrie, Misty, Annabelle and Hippolyta to Harrowpoint Island, Washington, where Caroline le Fey has taken Dani Moonstar to use in a ritual to summon the Doommaidens.

During the subsequent battle, Annabelle manages to free Dani before the Doommaidens halt their fighting, recognizing Valkyrie as their "sister".

Valkyrie then decides to take Dani and Hippolyta and lead the doom maidens away from the city, while Misty and Annabelle call Heroes for Hire for help.

In the divergent timelime created by Pym's death, Morgana le Fey and her husband Dr. Doom conquer half the planet.

[17] Valkyrie, Dani and Hippolyta lead the doom maidens to an Asgardian ruin in Descanso de Deus, Brazil.

Valkyrie, Misty and Elsa track a hatchling to an underground lair, where Hai-Dai ninjas are bio-engineering Brood eggs.

[21] In New York City, the Fearless Defenders attempt to stop the Doom Maidens from awakening the Pandemonium Axles, evil sculpture-like creatures that have remained dormant underground for sometime.

[22] During the Infinity event, Ren Kimura, a dancer living in New York City, is exposed to the Terrigen Mist, causing the dormant Inhuman genes in her DNA to awaken.

[24] In Los Angeles, Misty recruits Frankie Raye for a mission to put an end to the Doom Maidens once-and-for-all.

The Fearless Defenders find the Doom Maidens in the final stages of a ritual to grant Caroline the powers that she has been craving.

In the subsequent battle, the Fearless Defenders defeat the Doom Maidens while Frankie siphons the energy from the ritual before Caroline can complete her transformation.

"[26] Sara Lima of Comic Vine gave it five out of five stars writing, "Sexy, smart and strong: if this series is anything like this first issue, then it might just be my new 'must-read.

'"[27] Melissa Grey of IGN gave it a 9.0 out of 10 writing, "The ladies of Fearless Defenders are a force to be reckoned with in this stellar first issue.

"[28] George Marston of Newsarama gave it an 8 out of 10 writing, "With a little bit of Lethal Weapon, a little of The Da Vinci Code, and lots of Marvel charm, there are more than enough hooks to make this book worth your continued attention.

"[32] Zawisa of CBR gave issue #3 two-and-a-half stars writing, "Fearless Defenders #3 is a snippet from a longer arc and reads as such, but that doesn't stop it from providing some entertainment and solid character bits for future issues as the team continues to coagulate while Bunn tries to find appropriate voices for each of Valkyrie's new allies".

"[34] Grey gave it a 7.9 writing, "Cullen Bunn ties together more than a few loose plot threads in The Fearless Defenders #3.

Bunn packs the pages with dialogue, which can feel bulky at times, but it means he can chock in quite a lot of narrative for one issue.

"[38] Zawisa gave issue #4AU four stars, praising the work of writer Cullen Bunn and artist Phil Jimenez, writing, "The story itself is independent enough to be enjoyable, but connected enough to add value to Age of Ultron.

"[40] Lima gave it three stars writing, "Although the appearance of so many characters in one book reads awkwardly, some of the dialogue was clever and funny and that at least redeemed the contents of this issue a little bit, at least for me.