Last night's NCIS featured a heavy dose of McGee as his grandmother, played by Lily Tomlin, was centrally involved in the team's case. For a full rundown, be sure to read our NCIS review from earlier.

Next Tuesday, it looks like Abby takes center stage. She uncovers new information about her family after undergoing tests for a kidney donation. Abby scenes never disappoint, so we have high hopes.

Meanwhile, the NCIS team searches for the person and motive behind a contract killer targeting a Navy Lieutenant Commander. Check out CBS' promo for "Enemy on the Hill" and comment below:

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