Today's episode of Loki kicks off with the God of Mischief waking up in The Void, where he finds himself being helped by three Variants: Classic Loki, Kid Loki, and Boastful Loki. They need to flee as a giant creature who appears to be made from purple smoke is fast approaching, and Classic Loki reveals that it's an entity known as Alioth. Back in the TVA, Renslayer doesn't have the answers Sylvie wants and is unaware of who is really in charge of the organisation. The Judge reveals that Loki has been transported to a Void at the end of time where branched timelines and Variants are transferred upon being pruned. Renslayer agrees to help Sylvie travel to The Void, but "Lady Loki" quickly figures out that she's being lied to, and prunes herself after being surrounded by the Judge's men.
Loki has a lot of questions for his Variants and learns what led to them being pruned. Kid Loki murdered Thor, while Classic Loki actually managed to escape being killed by Thanos by disguising himself as a piece of debris and floating through space until he landed on a quiet planet where he lived for a long time before deciding to return to his brother's side because he was lonely (it was at that moment the TVA appeared). Alioth has the power to wipe out anything and everything that enters its domain, and these Lokis have spent a long time hiding from it. Heading back to Kid Loki's base (he's in charge), the God of Mischief decides he's had enough and takes off...only to be confronted by President Loki and his followers. Sylvie, meanwhile, arrives in The Void and is pursued by Alioth, briefly catching a glimpse of a mysterious castle before a car pulls up and helps get her to safety. The driver? It's Mobius! He also survived being pruned.
As for President Loki, it's revealed that Boastful Loki betrayed Kid Loki in exchange for being named ruler of The Void. The President, however, isn't on board with that and intends to take over himself, but is promptly betrayed by his fellow Variants! Alligator Loki has had enough and proceeds to bite off the villain's hand, while our Loki is able to make his escape alongside the Classic, Kid, and Alligator Variants after everyone starts fighting each other.
They agree to help Loki, and it's then Sylvie and Mobius appear. She's figured out that Alioth is just a "guard dog" protecting the person beyond The Void at the end of time, and she's going to enchant the beast in order to help them break-in. In the TVA, Renslayer interrogates Hunter B-15 and asks Miss Minutes to get her the files on the founding of the group because she wants to find whoever created them to warn of the impending danger they're facing. Mobius and Classic Loki ponder whether Alligator Loki really is a Loki, while Loki and Sylvie grow closer; they're clearly not ready to share their feelings for each other, but there's a bond there, and he vows not to betray her. Mobius returns to the TVA to "burn it to the ground" after an emotional farewell, while Kid Loki presents Loki with Laeveteinn.
He and Sylvie attempt to enchant Alioth together, but it's a well-timed distraction from Classic Loki - who uses his powers to recreate Asgard - that ensures they're able to take control of the creature. With a final cry of "Glorious Purpose" and a classic Loki laugh, he's wiped from existence, but Alioth has been defeated and the path to that castle (which looks a lot like it could be in the Quantum Realm) is finally clear...