June 23 2013, 08:15 PM
Location: Republic of California
Re: Space Battleship Yamato 2199
A lot does happen in Chapter 6. This is a sort of summary. I've not seen it, but I've been able to piece things together from what people have said about it, the trailer, the clips form the BD, and the Japanese wiki on the matter.
Dommel is released from confinement and given a task by Desler to capture the Iscandarian on Yamato. Dommel also asks to destroy the ship. Unfortunately the majority of the Gamilas Navy is away from Gamilas, defending the frontiers or on their way back from the disaster at Balun, which will take several weeks to months to return home. This leaves only the Imperial Guard left to defend Gamilas. So Gimmhil gives Dommel what he can spare....four training carriers. These are staffed with trainees, reservists, and retired soldiers. To help with the capture of the Iscandarian, Wulf and his submarine UX-01 are added with a torpedo boat and a infultration team of Zultzi (pale skinned second class citizens like those that ran Pluto Base). To help give Dommel and edge against Yamato, his friend Talan has the latest in matter teleportation technology installed on Dommel's flagship battleship. Additionally, Dommel repurposes an asteroid mining drill into a drill missile to drill into Yamato and hopefully destroy it...or at least negate its wave motion gun. They go to meet Yamato in the Rainbow Star Cluster, because Yamato has to pass through there to reach Iscandar.
Dommel's fleet uses the matter teleportation device to surprise Yamato with bomers and take out its radar, sensors, and shield generator. They then batter it and plug the wave motion gun with the drill missile. The Green carrier is destroyed by Yamato's fighters and much of the fighter and torpedo bombers are destroyed.
The infultration team boards Yamato in a lull while Yamato's radar is still out. During the confrontation, Hoshino (the younger security guard) is shot with Yuria as a witness, her pained scream wakes Yurisha from her pod in the navigaton room. (Hoshino survives this). Yuki is nearby and arrives first. The Gamilas think she's the Iscandarian and capture her. Kodai and a security team arrive too late to save her, but only one of the Gamilas escape. They make it back to the submarine which escapes dispite Kodai's efforts in the Cosmo Zero to stop them.
Dommel's remaining forces converge on Yamato. The Red battle carrier in the lead followed by Dommel's flagship. Its bulk and armor protecting the other two carrier behind them. Niimi and Analyser manage to reverse the drill missile which somehow hits the Red battle carrier destroying it. The debris from the battle carrier forces the other two carriers to evade, allowing them to be shot and destroyed by Yamato (the purple one is shot by Yamato, the blue one may have run into the debris instead). This leaves only Dommel's ship to fight Yamato one on one. Okita eventually uses the terran (the Rainbow Star Cluster is dangerous) to defeat Dommel's ship, with only the detachable bridge section surviving. Dommel self destructs under the "third bridge" which survives, but is heavily damaged, taking out Yamato's gravity system and shield generator.
Wulf takes Yuki (who plays up that they think she's Yurisha to cover Yamato) to a prison planet were he's suppose to transfere her to another ship. But there is a prision riot...and Yamato arrives. Wulf leaves in his submarine to deliver Yuki to Desler in person.
During the revolt, Admiral Dietz is released, as is Dommel's wife. Dietz via his daughter and seeing Yurisha sides with Yamato.
Desler's plans to unify Gamilas and Iscandar go forward as Yuki continues to make it seem like she is Yurisha. He plans to move the capitol so his has had a city-ship built, but since Yamato is closing in , his has it tasked with destroying Yamato. Yamato arrives at the fifth planet in the system and while they think they are unobserved, Desler has the city-ship fire a Desler Cannon at it from between Iscandar and Gamilas (the fourth twin planets in the system).
There is likely a bunch more, but I have more information of episode 19 and 20 than I have on 21 and 22.