Sandra Marquez

The guys decide to compete in the university's Physics Bowl, but since Sheldon's only focus is to prove his mental superiority, the guys kick him off the team. To take his spot, they enlist his nemesis Leslie Winkle (recurring guest star SARA GILBERT).

Michael encounters problems bringing Abruzzi and Sucre into his plan, Veronica gets a statement from Leticia that could help exonerate Lincoln, but then loses her. Finally, as his execution date draws nearer, Lincoln considers having a family member there.

Dr Halstead must face the consequences of the unauthorised resuscitation. A misdiagnosis leaves Dr Manning to make some difficult decisions.

Miller's published story could bring down Kane, but Kitty's alliance with Doyle could prove to be equally problematical. Meredith enters a new relationship.

A lavish groundbreaking of the modernised O'Hare terminals cements Kane's legacy. Despite his seemingly bright political future, Kane continues to struggle with his disease.

Kane uses a tragedy in his personal life to further his political agenda. He also tries to heal his fractured inner circle by poaching Mona Fredricks, the senior aide of his nemesis.