Undefeated (Undefeated Series books 1-4)

Bryant: Smith Brothers fight club has trained some of the world's leading MMA fighters, but when the club's reputation is threatened owner Bryant Smith turns to sexy private detective Parker Wilson to uncover the truth. Ace: Ace Sparks has spent his life trying to make a name for himself in the world of MMA, but when he comes to the aid of a friend he learns the most important fights are fought outside the ring. Walt: When Walt returns home from war a changed man he must convince the woman he loves that he's worth a second chance. Paul: For the past four years Paul has been haunted by the death of his wife, but when he has his own brush with death he'll discover his life is indeed worth fighting for.