Naruto thinks over the things Kushina told him.
I am the Konoha ninja Uzumaki Naruto, and my dream is to succeed the name of Hokage! And I'm going to surpass the Hokage who had come before me!
And I'm going to become a cooler guy than Dad was, and a stronger ninja than Mum was!!
As soon as he shouts this, Naruto returns to his consciousness.
Yamato, while surprised, asks if it went well. Bee seems to know how it went just by meeting fists (TN: sorry, what do you call that action when 2 guys punch fists against each other in a friendly way? When I think of a better way to express this, I will edit).
The two of them have some important things to talk about in private, so they leave Yamato behind.
In the village, Guy is seen arriving. He obtains the intel on Naruto's situation, and saying that he can't leave a young man who's struggling in his youth alone, he goes to where Naruto is.
Naruto keeps the Kyuubi's chakra separate from where he keeps his own chakra.
Naruto holds out his hands and has the Kyuubi's chakra kept in a sphere right above him where he is surrounded by 4 torii (Shinto shrine archways, like those famous red ones in Kyoto at Fushimi Inari?)
In so doing, the real Naruto is able to transform into some sort of plasma body.
This chakra that's overflowing in vitality, under Yamato's Mokuton influence, is able to grow trees.
Here, Naruto realises the presence of something. He feels something that is not chakra, but rather, evil intent, and just as he points at Samehada, Kisame flies out.
Kisame asks if this ability to sense emotions like hate and wickedness like a sensor type stems from his power as a Jinchuuriki who has taken control of the Kyuubi.
Bee says that he's sure he got Kisame's neck that time, but Kisame says that it had been a parasite Bunshin that he could control remotely, so even his sensor abilities hadn't been able to realise it.
However, seeing that he was at a disadvantage, Kisame opens the door and runs as a cockroach.
Bee wonders how he knows where the door is
Naruto, saying that it's obviously because he's sneaked in as a spy, uses Shunshin no Jutsu and attacks. Seeing this, Bee is amazed and says he's exactly like the Yellow Flash.
However, Kisame manages to escape on his tenacity, while vomiting blood.
Guy is in front of the waterfall. Guy is asks ti give the waterfall a try as well, but he says that supporting Naruto is priority.
But in the end, he does give it a try because he's asked whether it's merely because he's afraid to know the real him.
Hereupon, the real him in the waterfall asks if he's really in a position to talk about youth, when he's just an old geezer pushing his body unreasonably, and his body will break at this rate. The real him understands that in front of Lee, he's got to be his youthful self, but no one else wants him to forcibly act young.
Guy yells upon seeing the appearance of his true self, which says that its fine to be the Guy that's in the waterfall, because he should know best what the truth is... And just then, it fuses with Samehada and cockroach Kisame jumps out of the waterfall.
Guy sees this and asks "is this my true appearance...? A rare insect?!" and pales at the thought.
Kisame sees Guy too, and remembers Guy as a rare animal.
Guy yells that he, who has forgotten his youth, is going to ignite his will once again!
The ally (the dude who brought Guy there?) realises that it is Kisame and not the "true Guy" tells Guy such, and tells him to be careful!
But before he can finish,Guy attacks with Konoha Kaiganshou (his elbow move) and Kisame is thrust against the wall.
Guy goes "Eh?" before turning around to look at the ally, and Bee emerges from the waterfall going "Oh?" -- to be continued next chapter!

Full translation

506 Guy VS Kisame

Guy (still) doesn't know who Kisame is
Bee and the Konoha person who both got embroiled in this gag talk about various things

They talk about Samehada coming to where Bee is

Grabbing his chance, Kisame enters the water

"Watch out for Bee! I'm having my chakra taken"
Bee falls

The person from Konoha uses Hijutsu: Ishihari (Secret Arts: Stone Needles)
Guy provides backup with Konoha Senpuu (Konoha Whirlwind)
Kisame uses Suiton: Suikoudan no Jutsu (Suiton: Shark Missile)

Guy: I'll stop him even if it kills me!
8 Inner Gates! Keimon (6th Gate)... Open!!

Kisame grabs his chance and runs away

Bee's hand becomes large, and Guy rides in his hand and attacks from there

Bee falls, having been depleted of chakra. "I'll be back if I rest a bit ♪"

Naruto has sprained his ankle and Yamato makes him an ankle splint

Guy does a Kuchiyose no Jutsu mid-air and using his turtle's shell, jumps up again

Kisame uses Kuchiyose no Jutsu as well!! A shark appears
Guy appears then
Kisame makes the shark he summoned swallow a scroll containing information

Kisame uses Suiton: Senshokuzame (A thousand feeding sharks)!! A whole lot of sharks appear like a tsunami...

Guy: Asakujaku (Morning peacock)!!

Despite having disrupted the tsunami of sharks, there are too many sharks to tell which one was the one that swallowed the scroll

Guy: Kyoumon (7th Gate)... Open!!

Kisame: Suiton: Daikoudan no Jutsu (Big Shark Missile)!!

Guy: Hirutora (Noon Tiger)!!

Guy puts up a tough fight, prepared for death!! Concludes in the next chapter!!

Status: CONFIRMED SPOILER

Full Summary

508: How a Shinobi Dies

Kisame lets out a shout as he removes the restraining device and uses the Mizurou no Jutsu (water prison)

Everyone is flustered
Within the water prison, Kisame does a Kuchiyose but is beginning to lose consciousness.

From here, it's a flashback to when Kisame first met Itachi

Kisame: (It's just as you said, Itachi-san)
From today onwards, I'm the one who's going to be teamed with you. Once a Kirigakure (hidden mist) Seven Ninja Swordsman
Hoshigaki Kisame... Pleased to make your acquaintance.

Itachi listens silently

In spite of this, Kisame continues smoothly: The feeling of having killed your kinsmen isn't quite something you can put in words, now is it~

Itachi: You've done your homework, haven't you. I can tell you intend to understand me better, but how about yourself?
Coming here after getting lost in the mist... You're just a thug who hasn't decided where he wants to go. Am I wrong?

Kisame props Samehada on Itachi's shoulder
Kisame: Let me tell you something nice. This applies to the shark species too~~~
Sharks eat each other while in their mothers' stomachs. They kill their comrades. Henceforth, you are my comrade within Akatsuki. Please be on your guard. To me...

Itachi's eyes are in Mangekyou-mode: Right back at you...

Kisame unsheaths Samehada: Let's get along with each other so we won't end up as each other's final opponent.

Itachi: Be prepared with the knowledge that the one person who got along with me, died a worthy death

Kisame: In that case, that means neither of us are worthy humans, doesn't it?

Itachi: No, we are not fish. We are humans. We do not know what kind of human we are until we taste our last.
We are made to realise what we are at the time of our death. Don't you think death is like that?
--------------------
Back to the present time.
The shark that was Kuchiyose-d is on a rampage.

Kisame: (Itachi-san, it seems that I really am... Not a worthless human, huh?)

The Kuchiyose-d shark eats Kisame.

Everyone is dumbfounded

Aoba: He was very much weakened. That was the path he tread knowing he couldn't escape from us.
Yamato: To think that this was the way the mysterious individual Hoshigaki Kisame died...
Bee's friend: Is he really dead?
Samehada seems lonely
Bee pets Samehada
Naruto: But, he did it because he didn't want to give any information on his comrades to us, his enemies. Think about Nagato. Even within Akatsuki, there are people who act with their comrades in mind (dattebayo!)
Guy: (placing a hand on Naruto's shoulder) He was remarkable, although he was an enemy! A shinobi's way of life is determined by the way he dies!
Hoshigaki Kisame, I will never forget you for as long as I live!

A seal is performed to validate the scroll containing the information. The booby trap is set off. A bunch of sharks appear.
One of them holds the scroll in his mouth and heads to sea.

Rain is falling in Amegakure (hidden rain)
Madara sits on a rock by the water: Rinnegan... It looks like you aren't going to obediently tell me where you hid Nagato.

Konan: I knew you would come to me. I've been waiting... To kill you

Madara: You won't go easy on me just because we were once comrades... Great.
--------------------------
Kisame, with the talk about the type of sharks who eat each other in the maternal belly, refers to cannibalism with immature form of fishes
(traslator notes - simply put, sometimes it happens that the more developed shark devours the eggs of his brothers).
Kisame tells Itachi to be careful because since he's his comrades, he could eat him. He tells him he could do the same thing he has done to his last partners.

On the other hand, Itachi says: I'm not a fish (shark). I'm a human.

The meaning was unclear? Sorry for the criptic way it had been expressed with.

508 - Como um shinobi morre

Kisame consegue sair do jutsu de retenção e usa o Mizurou no Jutsu

Todo mundo está surpreso

Dentro do Mizurou no Jutsu, Kisame faz um Kuchiyose, mas está quase perdendo a consciência.

Começa um flashback de como ele conheceu Itachi se tornando parceiros na Akatsuki.

Kisame pede para Itachi tomar cuidado com ele.

Ele é um tubarão e matou todos os seus parceiros.

Itachi não fala muito e ativa o Mangekyou Sharingan.

Ele comenta que também deve tomar cuidado com ele.

Kisame morre.

Gai diz que ele era um homem notável, apesar de ser inimigo e nunca irá esquecê-lo enquanto viver.

A chuva está caindo em Amegakure.

Madara : Parece que você realmente não vai me dizer aonde está o Rinnengan.

Konan : Eu sabia que você viria até mim, eu estava esperando para matá-lo.

Fim.

Madara listens to Konan's reasons for her betrayal (of Akatsuki). He says he didn't expect that Naruto was worth so much.
Konan says hostilely, "Because he is the light, and holds the flower of hope for everyone."
Madara: "The fact that you are still wearing those clothes (Akatsuki uniform) despite fighting me tells me that you still cling to Akatsuki."
Konan: "Akatsuki was created by Yahiko, the red clouds on their uniform symbolise the rain of blood that fell during war in Amegakure, and just because you came aboard Akatsuki, it doesn't make it yours - it's our symbol of justice"
Konan continues: "The Rinnegan was bestowed upon Nagato of Amegakure, it is not yours, but his eyes are this country's, and this village's treasure"
Madara lets Konan's paper shuriken pass through his body, "This will be the end, so I'll tell you"
"The one who induced Yahiko to set up the Akatsuki was me. The one who gave Nagato the Rinnegan was also me. That's why it's only right to ask for them to be returned to me"
The two begin their battle as Konan says that if Madara were to get his hands on it, all sorts of things would happen.
Konan doesn't let hi materialised body escape by attacking with a large number of paper attacks.
Madara notices that she has something planned and decides to take her on, trying to suck Konan up when he has a chance.
However Konan has mixed some exploding tags among the paper, intending to kill the both of them.
-flashback starts-
When Akatsuki was founded? Konan reports to Yahiko that their members have been defeated.
Yahiko and Nagato are both injured and bandaged.
There are numerous other minor members present apart from Yahiko, Nagato and Konan.
Nagato says that he will go out to recce in the afternoon, but Yahiko says "I'll go, so rest, don't strain yourself"
He continues, "Nagato is pivotal to Akatsuki and is the man who will change the world. So just give all your worries to Nagato"
Konan: "The same goes for you, everyone loves you and thus follows you, that is most important, just like with Nagato"
A while later, Yahiko responds "He is the man who will become the bridge to peace. My role is to become a pillar of support to that bridge"
Yahiko murmurs, "This country is still crying, and I now want to save this country which I once hated for always crying, that's how I feel deep down. I just can't leave this country alone because it's a crybaby just like I was," and he leaves.
Konan, Nagato and the other members see him off, Nagato says, "The one who will be the bridge to peace is him, his very purpose will form the bridge"
"We'll believe in Yahiko, let's go everyone!" he commands, before following after Yahiko.
The flashback ends with Konan's monologue of determination "I will become the pillar of support to the two bridges formed by Yahiko and Nagato"
The exploded paper and cloth are scattered about. We see a little of Madara's face as his mask has broken. He has also lost his right arm.
He says to Konan who is right before him, seemingly not with as many injuries, "I underestimated you, after all you were also once a member of Akatsuki."
"You intended to explode the both of us, but thanks to the fact that I sucked in a little of the explosion, both of us are safe"
In response to Madara's question if she's exhausted her secret plans, Konan says that she has a question for Madara. "Do you know why you were betrayed by us?"
Madara: Who knows?
Konan uses secret arts as she yells "You are darkness, a flower can only wilt in a world without light!"
The lake? sea? all becomes paper, and spreads just like the Red Sea did for Moses, and she tries to drop Madara into it... next chapter!
A secret art to protect Nagato... Seal him into a sea of paper!!

A konan dá-lhe bem e consegue confundir Madara/tobi.
Consegue destruir o braço direito de Madara e também metade da sua máscara.
O que se vê é um homem com cabelo curto, e possivelmente mais jovem (isto é interrogado pela pessoa que colocou o spoiler na net)
Ficamos a saber qual o significado das nuvens no manto da Akatsuki.
Madara diz que foi ele que convenceu Yahiko a fundar Akatsuki e que foi ele também que deu o Rinnegan ao Nagato.
Flashback de Nagato, Konan e Yahiko
Konan usa um fuiin jutsu(?) para selar o Madara