As Mark Harmon was exiting "NCIS," the actor considered killing off his beloved Gibbs. Harmon now returns full-time for "NCIS: Origins" on Oct. 6.

Add Yahoo as a preferred source to see more of our stories on Google. It's Gibbs o'clock in the "NCIS" universe. Thank the TV gods. As Mark Harmon returns as Leroy Jethro Gibbs on "NCIS: Origins" on ...