25. The Right to Love
The battle for Tenroujima is over, and Makarov puts the S Class Advancement Exam on hold for now... Meanwhile, Cana decides to tell Gildarts the truth, even though she's not an S Class wizard. But whatever happened to Zeref?
Fairy Tail
Season 3
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.
26. Let’s Hold Hands
Acnologia arrives at the island and begins to destroy it. Seeing the Black Dragon of Apocalypse, Makarov tells his guild members to run while he fights it, but the fairies wouldn't leave without their master and decide to fight alongside him. However, their efforts ended up being futile as Acnologia releases his Dragon's Roar, seemingly destroying the island and everyone on it.
27. Fairy Tail, Year X791
Seven years have passed since the destruction of Tenroujima and the disappearance of everyone on the island. The guild is in a sad state of affairs, with members leaving in droves, decent work in short supply, and Fairy Tail itself supplanted by a bigger, badder guild, Twilight Ogre. But one day, the members of Blue Pegasus fly over to deliver some startling news...
28. The Seven Year Gap
Natsu and the other members have returned from their seven-year sojourn, but in their absence, Fairy Tail has gotten in debt to the gangster-like guild, Twilight Ogre. While Makarov pays them a visit to try to negotiate a deal, Lucy seeks out her father, whom she hasn't seen in seven years...
29. The Magic Ball
The still-broke Lucy and Natsu take a job to capture the thieving master of masquerade, Velveno, at a magical ballroom dance, but first... Natsu has to learn the steps
30. True Scoundrels - The Butt Jiggle Gang
When Natsu and company escort a shipment of gold, the train is hijacked by the wickedly flatulent trio known as the Jiggle Butt Gang. After Natsu and Lucy get blown away by the bunch, it's up to Wendy to save the shipment, a tough task when Wendy's a hostage herself.
31. The Terror of Invisible Lucy!
A magic ointment turns Lucy invisible! At first, it's fun, as she can play pranks on her friends, but then she starts to lose more than just her visibility!
32. Father's Memento
Lucy receives an unexpected visitor, with an even more unexpected gift... a dying wish from her father.
33. Turbulent Showdown! Natsu vs. Laxus
Natsu and Laxus are going to fight and the other members of Fairy Tail can't wait to see it... except for Erza and Gray, who are off on a mission to capture some bandits and their wizard bodyguards! Meanwhile, Lucy is still trying to figure out the meaning of the ancient characters on her father's memento...
34. Target: Lucy
Lucy is the target of an unknown plot by the Earthland counterparts of Hughes, Sugarboy, and Coco. More about the mystery of the Iron Rod is revealed.
35. The Fury of Legion
It's Natsu versus Sugar Boy! Wendy and Lily versus Coco! Lucy versus Hughes! And Gildarts versus Byro! But are the members of Legion really after Lucy... or something else?!
36. Key of the Starry Heavens
After Legion makes off with Lucy's key, the only thing the members of Fairy Tail can do is search for clues to figure out Legion's objective and the purpose of the memento from Lucy's father. They head to Lucy's old family mansion, but as soon as they discover a hint, two more Legionnaires crash the party... and one of them is an Exceed!
37. Travel Companions
It's a race against time as the members of Fairy Tail split up into groups to find the scattered pieces of the mystical clock before Legion, but they run into all manner of obstacles. Nor does it help that Natsu is currently a doll-sized version of himself!
38. Labyrinth Capriccio
Natsu and Lucy's team explore the ancient ruins of the Sacred Graveyard, going ever downward as they get through each floor's challenge. Meanwhile, in an interdimensional space, Gray, Juvia, and Lyon are in a desperate battle with Sugar Boy over the first piece of the mysterious clock!
39. Footprints of the Myth!
The Fairy Tail teams get ever closer to the clock parts, but two Legion members have already shown up to challenge Natsu's team! And that means more size-changing shenanigans, deathtraps, and unlikely allies than you can throw a stick at!
40. True Scoundrels, Once Again
They're back by no one's demand! The Jiggle Butt Gang is committing more fragrant fouls (or is that "foul fragrances") than ever before, which stinks because they're doing it right in the faces of Erza and Wendy! Meanwhile, the only thing that can possibly break up the brawl between Natsu and Dan... is Lucy?! Oh, and... clock parts are finally discovered!
41. Defying Calculation
Pantherlily battles and defeats Samuel as Gajeel's team retrieves the clock part from an underground chamber. Meanwhile, the Strauss siblings find another clock part and encounter Mary Hughes, while Byro appears before Natsu's team with the clock hand in his possession.
42. The Course of the Holy War
Mary Hughes breaks a taboo by unleashing her ultimate power! Can Mirajane out-ultimate her? Plus, Natsu takes on a giant octopus! And... the debut of the Jiggle Gang?! (Warning: It's not as appealing as it sounds...)
43. Time Begins to Tick
Natsu gives all he's got against a Legion of one: Byro Cracy, who has the power to nullify all magic! Will the other Fairy Tail groups get there in time to pitch in? Or will this be... the beginning of the end?
44. Enter the Neo-Oración Seis!
Just when it looks Fairy Tail is about to have a climactic fight with Byro over the Infinity Clock, Oracion Seis returns, with upgraded powers and a desire to make the ominous clock their own!
45. Get the Infinity Clock!
Oracion Seis has made off with the Infinity Clock and seems intent on counting down to doomsday. Meanwhile, Fairy Tail regroups, using Cana's divination skills to locate Oracion Seis's targets and choose the best teams to go after them!
46. Dissonance of Battle
Doranbolt... or is that Mest Gryder?... returns! But whose side is he on this time? Meanwhile, teamwork isn't working out for Natsu, Elfman, and Lucy against the threat of Jackpot! Likewise, new partners Erza and Evergreen just can't get along!
47. Anti-Link
Mest and Lahar meet the mystery person that Zentopia has been hiding... or is that hunting down? Gray and Fried face off against one of the Six Generals (and Dan Straight's new object of adoration), Angel! Meanwhile, Erza, Evergreen, and Max are confounded by Cobra, master of sound!
48. Despair Unleashed
The members of Oración Seis stop fighting Fairy Tail and resume their mission of casting Anti-Links on the celestial wizards hidden in churches, completely lifting the seal on the Infinity Clock's true form, a massive, clockwork dreadnought. Byro, meanwhile, tells Natsu's team of his orders from Lapointe to bring Lucy to Zentopia's archbishop. With Oración Seis's plan complete, "Michelle" reveals her true identity as a member of Oración Seis, Imitatia, who posed as Lucy's relative to manipulate Fairy Tail into helping them. She also reveals her authority as archbishop given to her by the real one, forcing Byro to follow her orders, and kidnaps Lucy.
