NCIS: Los Angeles returns tonight after NCIS with its first episode of 2011.

In "Overwatch," team uncovers an experimental Navy tracking system when a body containing a top-secret residue is stolen from an autopsy room. Classified stuff, as usual. Where will it lead Callen, Sam, Kensi and Bieber Deeks? We'll find out ...

Follow the jump for a clip from the episode, in which Callen proposes a challenge to Hetty as a means of getting out of filling out reports. We wouldn't underestimate her ...

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