NCIS delivered a powerful two-part episode over the last two weeks, depicting the return of Lt. Flores, a race against time to uncover a terror plot, Tony's soul searching and a look back to Gibbs' USMC days.

Read our NCIS review from last night for full coverage of "Engaged."

Looking ahead to next week, Robert Wagner makes his third appearance as Tony's father. True to form, he appears to be caught up in NCIS business, although far more seriously than his previous visits.

After Anthony DiNozzo, Sr. is found in a car with a dead body in the trunk and no memory of the previous night, the NCIS team must figure out what the heck happened, and if he is capable of murder.

Meanwhile, Tony is sidelined for this case and must go against orders to try and prove his father’s innocence. Given their already complicated relationship, this should make for an interesting episode.

Think he's actually involved in a murder? He can't be, right?

Watch CBS' promo for "Sins of the Father" below ...

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.