Smallville 1x8 Jitters Season 1 Season 0 0 EpisodesSeason 1 21 EpisodesSeason 2 23 EpisodesSeason 3 22 EpisodesSeason 4 22 EpisodesSeason 5 22 EpisodesSeason 6 22 EpisodesSeason 7 20 EpisodesSeason 8 22 EpisodesSeason 9 21 EpisodesSeason 10 21 Episodes 1x1 - Pilot 1x2 - Metamorphosis 1x3 - Hothead 1x4 - X-Ray 1x5 - Cool 1x6 - Hourglass 1x7 - Craving 1x8 - Jitters 1x9 - Rogue 1x10 - Shimmer 1x11 - Hug 1x12 - Leech 1x13 - Kinetic 1x14 - Zero 1x15 - Nicodemus 1x16 - Stray 1x17 - Reaper 1x18 - Drone 1x19 - Crush 1x20 - Obscura 1x21 - Tempest An experiment at the Luthor fertilizer plant makes an old friend of the Kents literally shake and jitter, and he seeks vengeance against the Luthors, who hide the secret of his transformation behind "Level Three" at the local plant.