OPERATION: S.I.N. #4
Written by Kathryn Immonen
Art by Rich Ellis
Published by Marvel Comics
Release Date: April 1, 2015

Howard proves yet again that he can’t drive (spaceships). Peggy and the gang crash headlong into the Hydra-run gulag outpost just as a ragtag crew of Soviet scientists opens a portal between worlds! But it turns out they release an ancient terror searching for… his beloved?!

[Exclusively via Comicosity]