ZOD UNLEASHES A VIRUS INTO METROPOLIS – Zod (Callum Blue) and his soldiers release a virus into the air that turns humans into zombies. The only way to stop it is to make an antidote from the blood of another Kryptonian. After Lois (Erica Durance) is infected, Chloe (Allison Mack) pleads with Clark (Tom Welling) to donate his blood to stop the epidemic, even though it risks outing him to Zod.
BRIAN AUSTIN GREEN (“TERMINATOR: THE SARAH CONNOR CHRONICLES”) GUEST STARS AS JOHN CORBEN – Clark (Tom Welling) tells Jor-El he¹s ready to start his training, but Jor-El sends him back to Metropolis to cut ties with Lois before he can begin. Chloe (Allison Mack) is shocked when Lois (Erica Durance) suddenly reappears after having been missing for weeks, but Lois has no recollection of vanishing into thin air with the Legion ring. While investigating a monorail crash, Lois meets John Corben (guest star Brian Austin Green), a new reporter at The Daily Planet, with a negative attitude toward the Red-Blue Blur. Chloe begs Clark to use the Legion ring to go back in time to save Jimmy, but he refuses, driving a wedge into their friendship. Meanwhile, Oliver (Justin Hartley) continues down a dark road, and Zod (Callum Blue) arrives at the Luthor mansion.
CLARK AND DOOMSDAY FACE OFF — Oliver (Justin Hartley) tells Clark (Tom Welling) he must kill Davis (Sam Witwer), as Doomsday is a serious threat and must be stopped at all costs. However, Clark struggles with taking a human life, so the Green Arrow and his team decide to take matters into their own hands. Lois (Erica Durance) takes on Tess (Cassidy Freeman), but the fight takes a shocking turn. Meanwhile, Chloe (Allison Mack) gets caught in the middle of Oliver and Clark’s battle over killing Davis.
DC COMICS CHARACTER PLASTIQUE RETURNS WITH FRIENDS — Chloe (Allison Mack) returns and begs Clark (Tom Welling) to kill Davis (Sam Witwer), claiming he can no longer keep the beast under control. Tess (Cassidy Freeman) has assembled a team of meteor freaks, including Plastique (guest star Jessica Parker Kennedy), to track down Davis so Clark can kill him. However, things get out of hand once Tess’ team discovers she is double-crossing them.
DAVIS BLOOME’S HISTORY IS REVEALED — Tess (Cassidy Freeman) tries to kill Davis (Sam Witwer) by blowing up his truck. However, after he escapes, she realizes she needs help to destroy him and turns to Clark (Tom Welling). Tess reveals Davis’ secret childhood with the Luthors and hints that she knows Clark’s true identity. Meanwhile, Davis runs to Chloe (Allison Mack) for help.
DC COMICS CHARACTER PLASTIQUE BLASTS INTO METROPOLIS; DAVIS BLOOME ARRIVES IN SMALLVILLE — It’s Clark’s (Tom Welling) first day at the Daily Planet with Lois (Erica Durance), and the pair are immediately thrown together on a story when a bus explodes outside the office. Clark rescues Bette (guest star Jessica Parker Kennedy), a young girl who bonds with Chloe (Allison Mack) over their shared meteor abilities, but Bette is hiding a big secret. Paramedic Davis Bloom (Sam Witwer) arrives in Metropolis and is drawn to Chloe.