Smallville - Season 10 - Eps 3: Supergirl
Clark is stunned when Kara returns to Earth and tells him Jor El sent her to stop the dark force that is coming because he doesn’t believe Clark can handle it. Meanwhile, Lois confronts Gordon Godfrey, a shock jock radio DJ who has been crusading against heroes, after he threatens the Green Arrow. However, after Godfrey is possessed by the dark force, he takes Lois hostage and Clark and Kara have to come to her rescue.
About Smallville

Title: Smallville
First Air Date: 2001-10-16
Last Air Date: 2011-05-13
Status: Ended
Rating: 8.205/10 (from 4153 votes)
Language: EN
Seasons: 11
Total Episodes: 216
Network: The WB The CW
Genres: Sci-Fi & Fantasy, Action & Adventure, Drama
Production Companies: DC, Warner Bros. Television, Tollin/Robbins Productions, Millar Gough Ink
Synopsis
The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark Kent’s final steps toward embracing his destiny as the Man of Steel.
Cast

Tom Welling
Clark Kent

Erica Durance
Lois Lane

Cassidy Freeman
Tess Mercer

Justin Hartley
Oliver Queen