Kevin and Jana ended their 23-year marriage three years ago over allegations of abuse and cheating. Now, Jana’s sister, Lori, claims if they don’t end their fighting, someone is going to get hurt.

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“Kevin is a dangerous bastard, and I’m afraid one day, he’s going to kill my sister,” claims Lori.

Jana claims, “Kevin was abusive throughout our marriage.” She also claims he would “intercept” her emails, kept cameras outside the house to watch her and has called CPS on her.

“He accused me of abusing my son,” Jana claims. “Kevin is trying to get me in trouble so he can take the children.”

WATCH: Man Says Ex-Wife Is ‘Causing Chaos’ Because She Wants Revenge

Kevin claims that Jana is an exaggerator and is “causing chaos because she just wants revenge.”

See what happens on Tuesday’s episode of Dr. Phil when Jana and Kevin come face-to-face. And, what does their teen son have to say about his parents' behavior? Check here to see where you can watch.

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