NCIS (CBS)
Premieres: Tuesday. Sept. 25 at 8/7c

Where We Left Off: Blaming NCIS for his son's death on a Navy ship, eccentric businessman Harper Dearing (guest star Richard Schiff) organized a number of attacks on the Navy's fleet before ultimately setting off a car bomb outside NCIS headquarters. Upon hearing the news in Florida, medical examiner Ducky had a heart attack.

What's Next: Don't worry: Everyone will make it out alive. But the emotional impact of the shared near-death experience will set the tone for the entire season. "There's a theme [of] 'Fallen Heroes,'" executive producer Gary Glasberg says. "We've got these people who've been knocked down and they have to pick themselves up again. … [For Ducky], physically, can he do it? It's an eye-opening experience for him." Plus: Glasberg promises a "kick-ass" showdown between Gibbs and Dearing as well as return visits from Abby's brother and DiNozzo's father. Oh, and Tony and Ziva are trapped in an elevator!