On Thursday morning, fans of comics rejoiced when the folks at Disney-owned (NYSE:DIS) Agents of S.H.I.E.L.D. took to their Twitter page with this announcement:

Disney Stock, Agents of SHIELD, CBS
Image source: Twitter

Of course, many people who commented expressed surprise that Disney hadn't already picked up Agents of S.H.I.E.L.D. for the full first season, especially after last Tuesday's show managed to beat out even CBS' (NYSE:CBS) perennial ratings juggernaut, NCIS, in the key 18-49 demographic.

In the following video, the Fool's Steve Symington breaks down the challenges that Agents of S.H.I.E.L.D. has faced so far, and talks about why, exactly, Disney decided to make the full first season official.