First Impact (Giant Impact)
SPOILER!
Ancient Event · Mostly Supplemental Cosmology
The television series treats First Impact as an ancient catastrophe in Earth's history but does not explain its true mechanism in the same detail it eventually gives Second Impact.
The familiar account involving
Lilith, the Black Moon and competing "Seeds of Life" comes primarily from expanded Evangelion material rather than a clean exposition scene in episodes 1–26.
Why it matters
For a TV-series watch-along, First Impact is background, not a puzzle you are expected to solve from the broadcast episodes alone.
Second Impact (September 13, 2000)
Antarctica · Contact Experiment
The public story says Second Impact was caused by a meteorite. The hidden history revealed through Misato, Kaji, Fuyutsuki and the episode 21 flashbacks is that the Katsuragi Expedition was conducting a contact experiment involving
Adam in Antarctica.
The experiment produced the catastrophe that devastated the planet and killed Misato's father along with the expedition.
Why it matters
Second Impact links the global apocalypse, Misato's trauma, SEELE's research and the Angel conflict. The disaster was not simply something humanity survived. Powerful people were already experimenting with the forces behind it.
Third Impact & Human Instrumentality
SPOILER!
TV Ending · The End of Evangelion
The television series ends inside Human
Instrumentality rather than presenting a conventional external account of how Third Impact unfolds. Episodes 25 and 26 focus on Shinji and the other characters as the boundaries between selves break down and identity is examined from inside the process.
The End of Evangelion later supplies a much more explicit physical-world progression for the same endgame material. It should not be silently substituted for what the original TV finale actually shows.
Why it matters
The
TV ending is not a missing battle recap. Its subject is what Instrumentality feels like when the barriers between people are no longer holding everyone apart.