For those of you who have been following Callen's journey since day 1, Monday's NICS: Los Angeles episode is a can't miss.

'NCIS: LA' Season 7: A Familar Face Takes A Beating In 'Matryoshka' Sneak Peek, Who Is It?

"Matryoshka" is the first installment of a two-part story that will ultimately reveal Callen's (Chris O'Donnell) first name. A mystery since day one, the Callen has born his "G" moniker for as long as he can remember. When the Feb. 8 and Feb. 22 episodes are through, however, the agent will have something more substantial to write on his nametag.

Penned by Kyle Harimoto ("Command & Control," "Chernoff, K") and directed by Dennis Smith ("Defectors," "Blame It On Rio") and featuring the return of Arkady (Vyto Ruginis) and his daughter Anna (Bar Paly), the episode has been hyped by cast and crew alike.

'NCIS: LA' Season 7: Eric Enters The Field [PHOTOS], 'Matryoshka: Part 2' Plot Revealed

Tags
NCIS: LA, NCIS: Los Angeles, Television, CBS