Title was a throwback to earlier anthology/double-feature series for the first eight issues. Beginning with #9, the title featured just one individual or team.
Series became a solo series for the Beast from #11-17 and is notable for introducing his "furry" form. From #18 until its cancelation with #39, the title featured Marvel's version of the War of the Worlds and introduced the character of Killraven. Although not directly related, the Inhumans earned their own series a few years later.