A murder leads Michael to the discovery of an underground fight club where he must participates, all new in 'Knight Rider'.
A bunch of clips are released in promotion of "Knight Rider" February 4 episode "Fight Knight". In the episode, Michael is forced to get involved in an underground fight competition in order to investigate the death of a sergeant.
Mike's old Army friend recruits his help to investigate the suspicious death of a tough-as-nails drill sergeant Jack Burber (guest star Tiki Barber, "Today"). Mike learns that the drill sergeant was participating in an underground fight club for military veterans for extra money. In order to find out what really happened, Mike has to infiltrate the fight club and try not to get himself killed in the ring.
The first clip shows Michael examining the body of the Drill Sergeant while the second is on Michael learning about the underground fight club. Michael is paired to a woman in the fight in clip three and four.