Mark Gibbon

Clark and Lex team up to rescue members of Clark's high school class after a janitor, Earl Jenkins (TONY TODD), takes them hostage in LuthorCorp's Smallville Fertilizer Plant No. 3. Jenkins claims his deadly "jitters" were caused by a mysterious contaminant, and he threatens to kill everyone unless he is shown a secret sublevel--which Lionel Luthor (recurring guest star JOHN GLOVER) denies ever existed.

Lex faces the consequences of a scandal from his past in Metropolis when an old enemy comes to Smallville intent on destroying Lex's life, putting Clark and Lana in danger. While protecting Lex, Clark must also prevent Chloe from investigating the mystery of Clark's adoption.

Ryan (from "Stray") returns and Clark has to save him from Dr. Garner of the Summerholt Research Facility. Meanwhile, Aunt Nell leaves Smallville, and Lex wants to expand the plant but runs afoul of the mayor.

Emma talks Mary Margaret into reading to an unidentified coma patient in the hospital; Prince Charming and Snow White meet for the first time.

Lois investigates the early prison release of ex-District Attorney Raymond Sacks (guest star DYLAN NEAL) but he threatens her with a gun when confronted. The Blur saves her, but is captured on film by a delivery guy (guest star DUSTIN SCHWARTZ) who plans to sell the photo to Sacks. Lois and Clark each attempt to thwart the delivery of the photo and run into Maxwell Lord (guest star GIL BELLOWS), a wealthy tycoon and Checkmate operative, who is trying to learn The Blur's identity to eliminate him. Meanwhile, Chloe discovers Zod's secret.