You are a Petty Officer Second Class in the US Navy and you were witness to a murder where someone broke into your neighbors house on base and killed him. You were able to identify the man in a line up and got a partial plate off the getaway car and were needed to testify at the trial.

Now someone keeps trying to kill you. It started with rigging the brakes in your car to sending you food laced with poison. So now NCUS had been put on a protect detail. But instead of you being in your own house Gibbs insisted he bring you to his place. So here you are, in his dusty, old, and sawdust-filled basement.