After Lois accidentally hits a dog with her car, she brings it to the farm to heal. Clark realizes the dog possesses superpowers when the canine lifts up a car to retrieve a ball. Clark and Lois discover that the dog is the result of an aborted LuthorCorp experiment and is being used to help commit crimes. But when Lois gets kidnapped by robbers and Clark becomes weakened by Kryptonite, only the dog can save them. Meanwhile, Lana questions Jason's involvement in the schemes of his mother, Genevieve (Jane Seymour).

Season 4 | Episode 14

Allison Mack

as Chloe Sullivan

Annette O'Toole

as Martha Kent

Erica Durance

as Lois Lane

John Schneider

as Jonathan Kent

Kristin Kreuk

as Lana Lang

Michael Rosenbaum

as Lex Luthor

Tom Welling

as Clark Kent