The mysterious box that Kensi had on her desk reappears a few weeks later on Deeks' desk. What's in it? We'll have to wait to find out. Deeks has it, but hasn't opened it yet.

John Corbett on NCIS: Los Angeles.

John Corbett and Kim Raver on the NCIS: LA spinoff pilot episode.

A shot from the 3/19/13 NCIS: LA spinoff episode.

A shot from the March 19, 2013 episode of NCIS: LA, featuring Kim Raver and Chris O'Donnell.

A shot from the March 19, 2013 episode of NCIS: LA, which introduces Kim Raver's character for the new spinoff.

A shot from the March 19, 2013 episode of NCIS: LA, which will launch the new show.

A shot from the March 19, 2013 episode of NCIS: LA, which is a backdoor pilot of sorts. Here you see Callen with Kim Raver's character.

A shot from the March 19, 2013 episode of NCIS: LA, which is a backdoor pilot of sorts.