Season 2
Index is still a fugitive, and many powerful magical organizations and individuals want to take her to use the books in her memory, eliminating her in the process. War between those organizations is also starting to emerge. Index can only rely on her friend Touma, who has always protected her, along with Misaka and other friends from the Academy.
Episodes
1 The Last Day (August 31) Oct 8, 2010 
2 The Book of Law Oct 15, 2010 
3 The Amakusa Church Oct 22, 2010 
4 Sheol Fear (Voice of the Magicbane) Oct 29, 2010 
5 Lotus Wand Nov 5, 2010 
6 Remnant (Wreckage) Nov 12, 2010 
7 Move Point (Coordinate Relocation) Nov 19, 2010 
8 The Daihasei Festival Nov 26, 2010 
9 Route Disturb (Pursuit Inhibited) Dec 3, 2010 
10 Shorthand (Stenographic Sourebook) Dec 10, 2010 
11 Stab Sword Dec 17, 2010 
12 Belvedere (The Observatory) Dec 24, 2010 
13 Croce di Pietro (Apostolic Cross) Jan 7, 2011 
14 City of Water Jan 14, 2011 
15 Queen's Fleet Jan 21, 2011 
16 Rosary of the Appointed Time Jan 28, 2011 
17 Penalty Game Feb 4, 2011 
18 Serial Number (Specimen Number) Feb 11, 2011 
19 The Researcher (Amata Kihara) Feb 18, 2011 
20 Hound Dog (Hound Squad) Feb 25, 2011 
21 Testament (Learning Device) Mar 4, 2011 
22 The Divine Retribution Spell Mar 11, 2011 
23 Prewar Mar 25, 2011 
24 Skill Out (Armed Gang) Apr 1, 2011