Gattai Robot Atranger
Japanese title: 合体ロボット アトランジャー
Type: OVA
Source: Other
Episodes: 1
Status: Finished Airing
Aired: Dec 29, 2011
Duration: 13 min
Rating: PG-13 - Teens 13 or older
Studios: AIC
Themes: Mecha

After a decades-long war against the Dark Ones reaches a stalemate, the giant robot Atlanger is about to be formally retired. But when the Earth is suddenly attacked, it'll be up to Asuka Ken and a group of ragtag rookie pilots to save everyone.

(Source: Inka-Subs)