“As a parent, my mom was unreliable, irresponsible and negligent,” says Amy who along with her younger sister Alisa, claims their mother Tammy repeatedly failed to protect Alisa from childhood sexual abuse committed over several years by multiple abusers.Conflict so big it needs a Dr. Phil solution?

TELL DR. PHIL YOUR STORY: Conflict so big it needs a Dr. Phil solution?

In the video above, Tammy says, “I didn’t realize the sexual abuse that happened to my daughter, Alisa.”

Amy asserts her mother did know what was happening to Alisa but neglected to do anything about it. She says Tammy made excuses for everything. “She was ‘depressed,’ ‘tired,’ ‘alone’ – I wasn’t buying any of it.” Amy says, “My mother acted like everything was going right – even if everything was going wrong.”

Tammy admits she did know about some of the abuse, but didn’t take it to the police. She also says her daughters have let their imaginations run wild regarding the past. “It seems like my daughters are prosecuting me as being a bad mom. I don’t know why they would do that. I feel like I did the best that I could do.”

WATCH: Sisters Accuse Mom Of Turning A Blind Eye To Sexual Abuse; Mom Claims She ‘Didn’t Know’

Now Amy says she believes that just last year, her mom’s current husband, Wendell, asked her 2-year-old son to kiss him “down there,” an accusation both Wendell and her mother vehemently deny.

“There’s no way Wendell did anything inappropriate to my grandson,” says Tammy. An investigation by Child Protective Services determined the allegations against Wendell were unfounded.

WATCH: Daughter Says Mom Witnessed Sexual Abuse And Still Refused to Call Authorities

Tammy says she and her daughters have not spoken in over a year.

Was Tammy genuinely unaware of the extent that youngest daughter, Alisa, was being sexually abused under her own roof; or was she negligent, as Alisa and Amy claim? Has Tammy’s husband Wendell been falsely accused of molesting Amy’s son? Tune in to Dr. Phil on Thursday as this family drama unfolds.

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Daughter Says Mom Witnessed Sexual Abuse And Still Refused to Call Authorities