Supergirl Recap: Everything You Missed in the Season 6 Premiere

Picking up from where Season 5 left off

Inside the Leviathan ship, Brainy is dying but Dreamer finds him. They have a brief moment with him trying to tell her to leave and that he loves her, then she utlizes her powers to open the door to the ship's core. As she does, a still-alive Gamemnae shows up. The Superfriends arrive and after getting Brainy to safety he reveals that they can use the Anti-Life Equation to stop Gamemnae. Some effective teamwork between Supergirl and Alex and Leviathan is stopped once and for all.

Lex's master plan...

In Lex's bunker, Lillian Luthor transfers the Leviathan energy into her son giving him superpowers and then Lex monologues about his plans to not only end Supergirl and take over the world, but he also has some pretty loft plans for the rest of the universe. He explains that he used the Obsidian North technology to brainwash people into loving him, anyone who doesn't have that brainwashing he plans to essentially nuke from space, and that he ultimately plans to be a new Anti-Monitor and wipe out anything in the universe that doesn't obey him.

The Superfriends quickly figure this out thanks to Lena and Dreamer, prompting everyone to come up with a plan. J'onn and M'gann will take out the sattelites/weapons by doing a Martian ritual, Supergirl tells Lena to use Myriad to undo the brainwashing, they figure out how to take away Lex's powers, and Supergirl plans to use herself as bait in order to lure Lex out. She offers herself up and he agrees, wanting to meet at the Fortress of Solitude.

...that doesn't go to plan

Meeting up with Lex is ostensibly a suicide mission, which prompts Supergirl to leave her legacy download -- a "last will and testament" of sorts -- at the Fortress, though she is only part of the way through when Lex arrives. They clash, with Lex hitting Supergirl with Kryptonite blasts while Alex and Dreamer get the bottle of Leviathan energy from Lillian (not without a fight) and Lena restores normal brain function to people with Brainy's help. M'gann and J'onn destroy the sattelites. With Supergirl seemingly dead, he has a field day in the Fortress playing with the weapons, though "Lena Luthor Protocol" engages, sending a plate to Kara's chest that saves her.

Collateral damage

The Superfriends arrive and, along with Supergirl, fight Lex. There are some cool battles here, and the team is ultimately able to strip Lex of his superpowers. Unfortunately, Lex finds the Phantom Zone projector and sends Supergirl somewhere into that hellscape before he's stopped. Because the projector is damaged, they have no way of knowing exactly where Lex sent her. Kara is, at least for now, lost to what is essentially her worst nightmare.

Aftermath

Lex is apprehended and the world now knows he's evil. Lena discovers that she's not the only person in the "inner circle" who didn't know about Kara. She discovers that Kelly also doesn't know and encourages Alex to tell her. Andrea, upon realizing that she's about to lose everything, uses her Acrata powers to sneak into her father's home and use his account to buy all of her Obsidian stock. It keeps her from going bankrupt and saves CatCo. At CatCo, Nia covers for kara by saying she's with Cat Grant.

Lena uses Myriad to wipe knowledge of Kara's identity from Lex and Lillian's minds. Brainy and Nia get back together. Alex struggles with her sister's absence, but J'onn makes her a full member of what is essentially's the Arrowverse's Justice League by giving her her own heroic name -- Sentinel. They will keep the city safe until they can find Kara and bring her home. And speaking of Kara, the episode ends with her unconcious somewhere in the Phantom Zone with menacing phantoms circling.