Board Thread:Theories/@comment-31940900-20160709183435/@comment-28958062-20160710163224

Plot twist Annie got out of the crystal and arrives just in time to save her "boyfriend" while Eren and Mikasa battle Levi for the serum.

All the experinced survey corps out on long mission, people have their guard lowered after she was inactive for so long, it makes a perfect opportunity for her to get out.