George struggles to come to terms with his father's death; Izzie cares for a patient with a mysterious background; Webber makes a big announcement; Burke and George both make decisions about their respective relationships.
One of the BAU team members puts himself in harms way when a killer releases a new deadly virus strain into the public which has devastating consequences.
When a Navy captain is found dead and dressed in a strange costume under his uniform, the NCIS team comes upon a secret society consisting of real-life superheroes.The team work to get to the bottom of it, with the help of Tony's ex-fiancée.
Robert Lewis obtains new evidence against Danny in his self-defence case. A widow who lost her police-officer husband asks Frank to help her.
Fin revisits his military roots to help a fellow Army Ranger who is struggling to recover from a sexual assault.