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E1 Petite Gargantia 1
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E2 Petite Gargantia 2
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E3 Petite Gargantia 3
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E4 Petite Gargantia 4
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E5 Petite Gargantia 5
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E6 Petite Gargantia 6
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E7 Petite Gargantia 7
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E8 Petite Gargantia 8
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E9 Petite Gargantia 9
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E10 Petite Gargantia 10
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E11 Petite Gargantia 11
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E12 Petite Gargantia 12
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E13 Petite Gargantia 13
Short episodes streamed on the anime's official site after every episode, giving background information about the show.
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E14 Petite Gargantia 14
Last of the short episodes only available on Blu-Ray, giving background information about the show. Also can be titled "Special Edition".
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E15 Abandoned Fleet
The Gargantia comes across an abandoned, derelict fleet and Ledo joins a small group sent there to investigate it while looking for treasures. Amy and her friends sneak aboard their ship and end up joining the search party. Upon finding an old picture, Ridget realizes that the fleet used to be where her childhood friend Storia used to live after she left the Gargantia seven years ago with her boyfriend Ritona. Upon checking up the main ship, Pinion concludes that the fleet's inhabitants were forced to abandon it after the main engine was broken beyond repair and the group returns to the Gargantia emptyhanded, except for Ridget who kept the picture for herself.
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E16 The Oracle's Altar
Following the battle against the Hideauze in space, Kugel and Striker got stranded on Earth just like Ledo.
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E17 The Ocean Routes Stretch into the Distance, Pt. 1
Six month have passed since Striker and Chamber battled. The fleet of Kugel has merged with Gargantia and Ledo is a salvager. He uncovers more records from a ap[st civilization. He talks with Reema about his past life on Gargantia.
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E18 The Ocean Routes Stretch into the Distance, Pt. 2
Ledo learns that what he salvaged included information about a robot like Chamber. Other inhabitants have uncovered something and want Ledo's assistance, even if it means the destruction of Gargantia itself.
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E19 Li`l Recapantia
Recap of season 1, told by Chamber.