rule #1 - about nick
Nick Torres is a character from the television series NCIS airing on CBS, and is portrayed by Wilmer Valderrama. He is a deep cover agent and has spent a decade undercover and has had over a dozen identities.
He gets back into regular field work and joins Gibbs' team. He has to get used to being "normal" again. He searches for an apartment and slowly processes life as a regular agent.
As he grows used to his new life, some of his old life comes back to haunt him and he is forced to face past regrets. He opens up to Gibbs, which is a necessary first step in gaining his trust and help.
Nick brings much needed humor to the job and continues to become close with his new team.