---------------Evangelion 3.0 Overview:
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In accordance with Ritsuko saying "Third Impact has begun" at the end of "2.0", the incident with the 10th Angel (Zeruel in NGE) is documented as the Third Impact.

So, deemed responsible for causing Third Impact, Nerv is dismantled by the government.
Misato and the other Nerv staff are confined, Eva-01 with Shinji and Rei absorbed is imprisoned in a tesseract and transported to the Moon. Then the story moves ahead 14 years.

All original Nerv staff except Gendo and Fuyutsuki have started an organization called WILL-E.
Their public pretext is restoring the red ocean back to blue, but in actuality they exist to prevent Gendo (Nerv?) from carrying out Fourth Impact. To do this, Misato and WILL-E advance the operations plans of the flying battle ship Wunder using Eva-01 as a power source. [I think that's what it says?]

Asuka and Mari pilot their Evas to perform a heist of Eva-01, which is imprisoned on the Moon. En route, they encounter the 11th Angel, but Eva-01 destroys it. (The TV sneak peak opening 7 minutes.) Asuka and Mari's appearances haven't changed due to the curse of Eva.

With Eva-01 back on the surface, Shinji is salvaged by Misato, as in NGE. Shinji then learns about the post-3I world and goes into despair. After that Wunder begins to make use of Eva Unit-01's power, and the 12th Angel is destroyed.
Kaworu appears before the despairing Shinji, and tells him that the world can be remade/constructed if they use the two Spears and Eva-13.
Shinji joins Kaworu and Nerv instead of WILL-E.

Shinji and Kaworu pilot the compound cockpit model Eva-13 and go to extract the Spear of Longinus and the Spear of Cassius that are impaling Lilith. But when they actually reach Central Dogma, both Spears were the Spear of Longinus. [buh?] Shinji pulls out the Spear(s) of Longinus so that Asuka won't meet a cruel fate again, but it was a trap by Keel and sets Fourth Impact in motion. As Fourth Impact is on the brink of happening, Kaworu stops it, and he blows up / ruptures. Because of the cockpit's compound arrangement, Kaworu bursts apart before Shinji's eyes.

Even after Fourth Impact is prevented, humanity is mostly extinct, and we proceed to "New/Sin Evangelion Theatrical Edition: ||".

All this shit can be avoided if only anyone take 30sec of their time and explain all the shit happened to Shinji. Why nobody tells him anything still boggles my mind