Luis Saguar

Nash and Joe find themselves having to solve a murder while fending off a trio of hit-men.

Sean and Christian receive an unexpected visit from the previously incarcerated Merrill Bobolit (recurring guest star Joey Slotnick), who is in need of the doctors' professional services. Escobar Gallardo (recurring guest star Robert LaSardo) blackmails the surgeons into visiting him in prison--and performing surgery on his face. Christian, Sean and Julia are surprised to learn that Matt is now married and expecting a child with his new wife. And Julia jeopardizes her marriage by telling Sean the truth about her relationship with Marlowe (recurring guest star Peter Dinklage).

The new SIU is introduced along with Caitlin Cross, a sexy police inspector with a personality and style destined to clash with Nash.