Brass leads Catherine and Grissom to the man in the concrete next to the body.) Sofia: The gas boys traced the leak to this apartment, and that was when they found ...
(She leads them into the kitchen where someone has their head stuck in the open oven.) Nick: Head in the oven ... (Nick looks at the old woman's hair.) Maintenance man. (Grissom opens the box and finds a miniature plant replica complete with dead body inside.) (Brass walks in.) Nick: Which is? Cruelty is cruelty, whether the victim be a chicken or a malnourished African. (Brass passes a crime scene photo of Penny Garden.) Brass and Greg enter the basement. I'm Warrick Brown from the Crime Lab. Guy's got no work card, and his keys weren't a match for any vehicle in a three-block radius of the construction site. Max smiles at her.) Sara: No, he didn't.
Plan: A: a man; Q: Who is trapped in cement near a murder victim? A: a construction site; Q: Where was the murder victim found? A: a suspect; Q: What is the man rescued by Catherine and Brass ruled? A: the man; Q: Who refuses to reveal his identity? A: Nick; Q: Who is the detective who investigates the death of an old woman? A: an oven; Q: What was the head of the old woman found in her apartment in? A: gas; Q: What did the old woman not die from inhaling? A: a chicken processing plant; Q: Where did Grissom, Sara and Greg investigate a murder? A: the previously unsolved murders; Q: What does the discovery of a miniature model of the crime scene help solve? Summary: Catherine and Brass find a man trapped in cement near a murder victim at a construction site. However, after being rescued and ruled a suspect, the man refuses to reveal his identity. Meanwhile, Nick, Warrick and Sofia investigate the death of an old woman found in her apartment with her head in an oven, but discover that she didn't die from inhaling gas. Grissom, Sara and Greg investigate a murder at a chicken processing plant which, after another miniature model of the crime scene in discovered, aids them in solving the previously unsolved murders.