Hydro (S06E10)

After Lana confesses to Chloe that she has reservations about marrying Lex due to her lingering feelings for Clark, the gossip columnist for The Daily Planet, Linda Lake (Tori Spelling), writes a story detailing their exact conversation. Determined to prove that she didn't give the story to Lake, Chloe investigates her co-worker and discovers Lake has the ability to turn herself into water, which allows her to secretly eavesdrop for her column. Meanwhile, Lois begins to suspect that Oliver (recurring guest star Justin Hartley) is the Green Arrow and enlists Clark's help to prove it. Series star Tom Welling directed the episode. (Warner Bros. UK)