NCIS Season 18 Episode 2
Everything Starts Somewhere
Flashbacks reveal the murder case that first introduced young Gibbs to NCIS and his introduction to young, new-to-America Ducky.
Guest Stars
Maria Bello
Jack Sloane
Vito D'Ambrosio
Jonny Zucado
Sean Harmon
Young Leroy Jethro Gibbs
Adam Campbell
Young Donald Mallard
Thomas Crawford
Dr. Magnus