How is Ziva connected to a dead marine? That’s the question on NCIS this week.

A blogger that accused NCIS of a cover-up turns up dead, forcing the NCIS team to find out who killed him and take another look at what was a closed case.

A murder of a Marine and his two friends turns out to be linked to the NCIS team, posing major problems for Gibbs.

This is the seventh season premiere of NCIS. In it, Gibbs puts McGee and DiNozzo in charge of finding someone to replace Ziva.