Marvel Agents of Shield

If you missed it last night Marvel showed a clip of "The Avengers: Age of Ultron" after "Marvel Agents of Shield".  This coming after the release of the teaser trailer last week.

Since the Marvel Cinematic Universe has taken over in recent years, I have been a big fan of the world of Marvel.  I have watched the movies, I have read the backgrounds on a lot of the characters. I am also a fan of Marvel Agents of Shield.  The thing is I never read the comics.