Synopsis
The first 29 episodes adapt the rest of the 24th volume through the beginning of the 25th volume as part of the "Sirius Island" (天狼島編, "Tenrōjima-hen") arc, which focuses on Natsu and the guild's other strongest members as they take their S-Class examination on Sirius Island, they are interrupted by the arrival of Grimoire Heart, who attempt to retrieve the dark wizard Zeref living on the island. Next 25 episodes features a completely original, self-contained story arc called "Key of the Starry Heavens" (星空の鍵編, Hoshizora no Kagi-hen), and focus on Natsu and the members of Fairy Tail as they meet a relative of the Heartfilias', and face a religious sect of warriors and a revived Oración Seis as they try to find the parts to an ancient doomsday weapon.
Season 3 aired between 17 Sep 2011 and 29 Sep 2012, 54 episodes.
Episodes
E01
Best Partners
17 Sep 2011
E02
Who's the Lucky One?
24 Sep 2011
E03
Natsu vs. Gildarts
01 Oct 2011
E04
Mest
08 Oct 2011
E05
Black Wizard
15 Oct 2011
E06
Iron Soul
22 Oct 2011
E07
Makarov Charges
29 Oct 2011
E08
Lost Magic
05 Nov 2011
E09
Fire Dragon vs. Flame God
12 Nov 2011
E10
Grand Magic World
19 Nov 2011
E11
Arc of Embodiment
26 Nov 2011
E12
Human Gate
03 Dec 2011
E13
Lucy Fire
10 Dec 2011
E14
Dead-End of Despair
17 Dec 2011
E15
Tears of Love and Vitality
24 Dec 2011
E16
The One Thing I Couldn't Say
07 Jan 2012
E17
Tenrou Tree
14 Jan 2012
E18
Erza vs Azuma
21 Jan 2012
E19
Freezing Fighting Spirit
28 Jan 2012
E20
Power of Life
04 Feb 2012
E21
Rolling Thunder
11 Feb 2012
E22
The Man Without an Emblem
18 Feb 2012
E23
Realm of the Abyss
25 Feb 2012
E24
Daybreak on Tenrou Island
03 Mar 2012
E25
The Right to Love
10 Mar 2012
E26
Let’s Hold Hands
17 Mar 2012
E27
Fairy Tail, Year X791
24 Mar 2012
E28
The Seven Year Gap
31 Mar 2012
E29
The Magic Ball
07 Apr 2012
E30
True Scoundrels - The Butt Jiggle Gang
14 Apr 2012
E31
The Terror of Invisible Lucy!
21 Apr 2012
E32
Father's Memento
28 Apr 2012
E33
Turbulent Showdown! Natsu vs. Laxus
05 May 2012
E34
Target: Lucy
12 May 2012
E35
The Fury of Legion
19 May 2012
E36
Key of the Starry Heavens
26 May 2012
E37
Travel Companions
02 Jun 2012
E38
Labyrinth Capriccio
09 Jun 2012
E39
Footprints of the Myth!
16 Jun 2012
E40
True Scoundrels, Once Again
23 Jun 2012
E41
Defying Calculation
30 Jun 2012
E42
The Course of the Holy War
07 Jul 2012
E43
Time Begins to Tick
14 Jul 2012
E44
Enter the Neo-Oración Seis!
21 Jul 2012
E45
Get the Infinity Clock!
28 Jul 2012
E46
Dissonance of Battle
04 Aug 2012
E47
Anti-Link
11 Aug 2012
E48
Despair Unleashed
18 Aug 2012
E49
Real Nightmare
25 Aug 2012
E50
Time Spiral
01 Sep 2012
E51
To the Infinity Castle!
08 Sep 2012
E52
Angel Tears
15 Sep 2012
E53
I Hear the Voice of My Friend
22 Sep 2012
E54
Lucy and Michelle
29 Sep 2012