Someone's been gun-running magical weapons into the Marvel Universe--and now SHIELD is under siege by a mysterious threat that can't be catalogued or classified--and against which SHIELD's super-science is useless! Guest-Starring Scarlet Witch!

Variants cover

S.H.I.E.L.D. (2014) #5 (Yu Avengers Variant)

S.H.I.E.L.D. (2014) #5 (Doyle Wtd Variant)