Gibbs leads the investigation into a murder victim found in a taxi headed to NCIS headquarters; Jenny uncovers a secret about her past.
Sherlock and Watson reveal a possible threat to homeland security when they investigate the death of a professional sceptic, a man who debunked religious, paranormal and scientific phenomenon.
Victims of a bus accident are treated; two doctors join the rotation; O'Hara is happy spending time with her son; Akalitus gives Eddie his job back.
Zoey and Thor help a nervous Jackie get ready for a date with Frank; Prentiss makes a misdiagnosis; Mike Cruz calls Jackie.
Jackie and Grace recover from their nights of indiscretion; Carrie uses flashcards to strengthen her skills.