S5, E10: Jonathan receives threats on his life from a mysterious source who urges him to drop out of the senate race. Later, Clark finds his dad bloody and beaten and is determined to find Jonathan's attacker. Clark discovers that a group of Lex's followers will do anything to see that Lex wins the election. Lois' (recurring guest star ERICA DURANCE) life is threatened, only to be spared if she assassinates Jonathan during his speech. Lionel offers to give Martha money to help Jonathan's campaign. Lana is convinced that the answers she is looking for lie in researching the first meteor shower.