For those of you who may be watching "Smallville" for the first time when the Legion episode airs next week, here's a quick catch-up of where we are.
Basically the show is telling the story of Clark Kent from when he was in high school and just developing his powers through the time he moves to Metropolis and begins his heroic career. This is season 8. The first few seasons dealt with Clark and his family and friends in Smallville and at Smallville High. Various super-powers were introduced as being induced by a meteor shower years in the past, and Kryptonite gave some people powers while it hurt Clark. Among Clark's friends were Pete Ross (since written out), Lana Lang (his first, and unrequited, love interest), and Chloe Sullivan, computer expert and editor of the school paper. Pete first learned Clark's secret, then Chloe, who has been his confidant. Chloe's cousin Lois Lane showed up later. Lex Luthor started out as Clark's friend, and in later seasons turned into an enemy as he tried to find out Clark's secret. As time went on, we met other heroes who are familiar to us, such as Impulse, Aquaman, Green Arrow, Cyborg, Black Canary, Martian Manhunter, and his cousin Kara. Clark keeps in touch with a computer representation of his father Jor-El, who created the Fortress of Solitude in the Arctic. Among his enemies are Brainiac, a sentient computer from Krypton. Last season, Brainiac possessed Chloe (among others) and gave her computer powers, and although they thought they had defeated him, they were wrong. Meanwhile, as the kids grew up, they all work in Metropolis now, Clark, Lois, and Jimmy Olsen at the Daily Planet, while Chloe works at Lana's secret company helping those with powers. Lex Luthor, having finally discovered Clark's secret, went missing, and he appointed Tess Mercer to take over running LuthorCorp in his absence (she also has a history with Oliver "Green Arrow" Queen). In recent episodes, they have become friends with Davis Bloom, who (unknown to him) is the son of Faora and General Zod of Krypton, from the Phantom Zone, and was sent to Earth as a destroyer named Doomsday. Doomsday invaded the wedding of Chloe and Jimmy in the last episode, and she is missing.
(Jimmy, Lois, Tess, and Green Arrow - all regulars - do not appear in this episode. Lana appears as a guest star, as she left the show at the end of last season.)
For further info on the show, visit Kryptonsite or the Smallville Wiki.
Now, here is a clip of Chloe - possessed once again by Brainiac - and Clark in the Fortress.
Here's another clip, which they call a "Director's Cut", showing the three Legionnaires facing off against Brainiac at the Daily Planet:
An interesting use of powers - Geoff Johns found something that I don't ever recall being used before, Cosmic Boy and Lightning Lad combining their electromagnetic powers.