Almeria Campbell

When the number comes up on a promising young doctor, Megan Tillman (guest star Linda Cardellini), Reese and Finch must unravel the threat while she's on-call and after hours.

When Jamie is caught on camera committing what could be construed as police brutality at an anti-policy demonstration, Frank is forced to turn the case over to Internal Affairs. Also, Danny and Maria investigate a rape case involving a civil rights attorney who claims the charges were drummed up in retaliation for the investigation into Jaime.

Holmes and Watson race to help Detective Bell when he becomes a victim of a bio-terrorism attack at the precinct and the station is quarantined. During the lockdown, Captain Gregson and Detective Bell begin to suspect they are trapped inside with the perpetrator. Also, Watson faces the difficult task of helping her mother, Mary (Freda Foh Shen), accept that her advancing Alzheimer’s disease requires her to receive more medical care.

A murder investigation leads detectives to a friend (Michael Rispoli) of Capt. Deakins, and mounting evidence forces even the captain to question his friend's innocence.

A diver of Middle Eastern descent washes ashore on Coney Island. His murder appears to be terror-related until detectives Goren and Eames look below the surface. They discover that the diver was part of a three-man crew of modern-day pirates hired to dig for hard-to-find treasure buried off-shore. Did the pirates turn on each other, or did they unearth proof of a long-buried scandal amidst the treasure?