Mason McCulley

Sheldon welcomes Missy to the world of atheism by encouraging her to question the Bible. Also, Meemaw is determined to catch George, Sr. in a lie; and Mary helps Pastor Jeff (series regular MATT HOBBY) search for a youth pastor.

The residents try to impress Jackson's mother, Catherine Avery, when she comes to Seattle Grace to perform a groundbreaking surgery.

Christy is troubled when sparks fly between Tammy and Chef Rudy. Also, Bonnie overreacts when her therapist, Trevor, accuses her of rejecting his help.

When a lab tech is murdered in a case that has eerie similarities to a 1950's cold case, the CSIs get a glimpse into what goes on in the shadows of the lab. (TV-14)

The team searches for Barry Rosen (MICHAEL DUNN), a competitive eating champion who vanishes after winning a $5,000 prize in a chili-eating contest. Barry had been told by a doctor that he needs to stop eating competitively or he might die of a heart attack or stroke. As the detectives question Barry's competitors, they also investigate why he attacked his brother with a knife days before the contest. Meanwhile, Danny is conflicted when his friend Carlos (JSU GARCIA), who is the father of Elena's daughter, asks him to write a letter on Carlos' behalf for the upcoming custody hearing with Elena.