[s2e12] War Of The Worlds: Pt. 1 Now

The survivors realize that the "aliens" are actually future humans who have traveled back in time to harvest organs to fix their own decaying DNA.

Since there are several popular series with this title, here are blog-style recaps for the two most likely matches for "S2E12 Pt. 1": and the 2019 Howard Overman series . [S2E12] War of the Worlds: Pt. 1

Option 1: Ben 10: Alien Force – "War of the Worlds: Part 1" The survivors realize that the "aliens" are actually

Azmuth drops a bombshell about the Omnitrix —it wasn't just built for combat, but as a "Noah’s Ark" to preserve and restore extinct species. [S2E12] War of the Worlds: Pt. 1