Smallville 4x15 Sacred Season 4 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 4x1 - Crusade 4x2 - Gone 4x3 - Facade 4x4 - Devoted 4x5 - Run 4x6 - Transference 4x7 - Jinx 4x8 - Spell 4x9 - Bound 4x10 - Scare 4x11 - Unsafe 4x12 - Pariah 4x13 - Recruit 4x14 - Krypto 4x15 - Sacred 4x16 - Lucy 4x17 - Onyx 4x18 - Spirit 4x19 - Blank 4x20 - Ageless 4x21 - Forever 4x22 - Commencement After Clark receives a message from the recently-deceased Dr. Swann, he and Lana follow Jason and Lex to China in search of one of the kryptonian crystals. Lana is tortured, causing Isabelle to emerge and wreck havoc in her search for the crystal.