Gerald Downey

While on Air Force One, a Navy Commander dies. Agents from the Navy NCIS decide to take the investigation into their own hands and force Secret Service Agent Kate Todd to help. The NCIS team then has to figure out if the Navy Officer's death was of natural causes or not.

Several of the doctors compete to be the new face of Seattle Grace; April brings an emergency case to the hospital; Alex and Jackson work with a transgender teen couple; new policies test the patience of the staff.

The Behavioural Analysis Unit team investigate a series of vehicular homicides along a dangerous stretch of road at the hands of a serial killer.

A strange encounter with a man called Dennis has an effect on Maura.

Frasier dresses up as a clown as part of his plan to cure a patient of her clown phobia, but he ends up giving Martin a shock that eventually leads him to make a major decision about his relationship with Ronee.

While investigating a shocking ritualistic murder, Beckett and her team uncover surprising evidence linking Castle to the killing.