NCIS: Los Angeles' Hetty Lange won't be the only one under investigation during season 6 - the Department of Justice will take a look at the entire team during "Inelegant Heart."

New Time Slot, New Feel For 'NCIS: LA'? Shane Brennan Talks Series Changes

During the second episode of the season, Callen (Chris O'Donnell) and Co. will investigate the death of a Navy contractor and his ties to confidential data leaks only to find that one of NCIS' own has been compromised as well. While the team is busy in the field, the Department of Justice will continue their review into Hetty (Linda Hunt) and the White Ghost.

Set photos from filming in early August indicated that Callen will sport a new look in "Inelegant Heart," and previous reports were correct. The enigmatic agent will swap his buzz cut for a beard and longer locks after "Deep Trouble: Part 2," but don't expect Callen to keep the appearance for long. Whether t is due to a post-premiere time jump or an undercover assignment, Callen's scruffy 'do will probably be gone by episode 3.

Major Densi Episode Planed For 'NCIS: LA' Season 6? Writer Hints At Upcoming Deeks & Kensi Developments

Find out more when NCIS: LA returns to CBS on Sept. 29 at 10 p.m. ET. Click the video below to get a glimpse at what's next for team in season 6.

Tags: NCIS: LA NCIS: Los Angeles television CBS