Callen was seen only briefly at the beginning of this week's NCIS: Los Angeles, taking off with his whereabouts unknown to viewers, fellow agents and everyone but Hetty.

Might the title of next week's episode, "Tin Soliders," refer to the clue to the past he found at the cemetery? Regardless, G. will be back in the fray come February 8.

When Callen catches a man breaking into his house, a former KGB operative leads the team to a shipment of counterfeit computer chips entering the United States.

Here's CBS' promo for next week's installment of the hit NCIS spinoff, which has been solid since the get-go, but has really come into its own here in season two ...

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.