This volume 3 covers Levi side story and chapters 10 – 13  in the manga.
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Synopsis:
TRAITOR

The last thing Eren remembers before blacking out, a Titan had bitten off his arm and leg and was getting ready to eat him alive. Much to his surprise he wakes up without a scratch on him, with a crowd of angry soldiers screaming for his blood. What strange new power has he awakened, and what will happen when the boy devoted to destroying the Titans becomes one himself?

Includes special extras after the story!
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Number of pages: 208
Release date: December 2012
Age rating: 14+
Number of volumes: 34 (completed)