Thirteen | [s3e7]

: Commander Lexa is killed by an accidental gunshot, sparking massive fan backlash and a national conversation on the "Bury Your Queers" trope. Key Plot Developments 1. The Past: Polaris and the First Commander

: The episode parallelizes two "13th" entities: the 13th Grounder Clan ( Skaikru ) and the 13th space station ( Polaris ). [S3E7] Thirteen

: Explains the end of the world via Becca's rogue AI, A.L.I.E. 1.0, and the birth of the Commander's lineage through A.L.I.E. 2.0. : Commander Lexa is killed by an accidental

: Becca injected herself with "Nightblood" (a radiation filter) and escaped to Earth with A.L.I.E. 2.0, becoming the first Commander. becoming the first Commander. : Becca

: Becca, an elite scientist, created A.L.I.E. 1.0, which subsequently triggered the nuclear apocalypse to "solve" overpopulation.