What season did gibbs leave ncis?
Gibbs was in an explosion on a ship after talking to a
terrorist, PinPin Pula who tells him that he is planing to blow up
a Navy ship, the Cape Fear I believe. Gibbs survives the explosion
but is in a coma for several days. When he wakes up he has no
memories for the past 15 years, since he was a Gunny in Desert
Storm. Several members of the team, including Jenny and Ducky try
to get him to remember which ship the bomb is on, to no avail.
Eventually they call in Gibbs old team leader Mike Franks. Franks
quit after the Kahal Towers bombing in1996 when his warnings about
a possible attack weren't taken seriously. Eventually Ziva goes to
Gibbs and takes his hand and uses it to head slap herself, which
brings Gibbs memory back. He goes to MTAC and talks to several
people and tells them that PinPin Pula wants to blow the Cape Fear,
they don't believe him they say that it is more likely that he
wants to wait until the ship is near a cruise ship to maximize
casualties. Gibbs says that that is not the case, PinPin told him
so. They don't believe him and allow the ship to be blown up,
killing 19 or 20 people. Gibbs is very hurt over the developments
and the needless loss of life and decides to leave the agency.