One former NCIS: Los Angeles is looking guiltier by the minute.

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"Unspoken" will introduce viewers to Sam Hanna's (LL Cool J) former partner as Ruiz's (Anthony Ruivivar) comes under fire as a traitor. When the team moves to investigate some pretty damning evidence, Sam leaves out a few important details about Ruiz's past.

Check out the sneak peeks below to see what the team has on Ruiz and watch Callen (Chris O'Donnell) explain why Ruiz no longer works for NCIS.

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Is Ruiz really a traitor? Sam seems to think his pal can do no wrong, but his little bombing endeavor appears to prove Mr. Hanna wrong. As tensions rise, the former Navy SEAL will resort to some unorthodox tactics to uncover the truth, including cutting the feed to the interrogation room.

"It is intense," co-writer Erin Broadhurst cautioned on Wednesday. "I can't wait for you guys to see it."

Find out more when NCIS: LA airs Mondays at 10 p.m. ET on CBS.

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