Abby Lee Miller is making a comeback on "Dance Moms, " but most parents are not happy to have her in the studio. A preview of the all-new episode teased at a tension-filled confrontation between the controversial dance instructor and several moms.

'Dance Moms' hints at heated encounter between Abby and moms

But unlike what viewers saw in the previous broadcasts, the sneak peek showed a rather emotional Abby Lee Miller who candidly expressed her disappointment for joining the reality program.

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"I think the biggest issue for me is that my coming back would be a bad thing," she admitted.

She went on to recall how Kendall Vertes started her journey on "Dance Moms" before she insisted on taking credit of what the kid has achieved [VIDEO]since she joined her studio.

"I don't know if you would have been able to do this for Kendall without me," the instructor added.

The reality TV star also reminded the parents that it was her who built a 298,000-dollar building so their kids could have a place where they could train and improve their dance skills. She even accused the parents of failing to realize how she has helped them and their kids with her own money.

Hence, the Lifetime star did not hesitate to admit that she regrets everything she has done for "Dance Moms" and for the kids. Nia Frazier's mom Holly, however, insisted that the kids learned a lot during instructor's absence from the dance studio.

Abby Lee Miller was able to film her comeback on the show before she was sentenced to one year and one day in prison over bankruptcy fraud. It is worth noting that the dance instructor was indicted for bankruptcy for failing to disclose her income from her overseas projects.

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The 50-year-old reality star finally received her sentence after a year and a half back in May.

Abby faces jail over bankruptcy fraud

The "Dance Moms" star formally reported to the Victorville Federal Correctional Institution following her request to serve in a California facility on July 12. After completing her jail time, Abby Lee Miller will be placed under supervised release and will have to pay a fine of 40,000 dollars, 120,000 dollars judgment as well as to provide a DNA sample regarding her felony charge.

Cheryl Burke was tapped as the new "Dance Moms" coach to replace Abby Lee Miller in the wake of her bankruptcy fraud case. The "Dancing with the Stars" pro claimed that the kids are now doing great after they have experienced trauma under the hands of Abby Lee Miller.

"They all want to move on and do other things, and it's important that they all have the right head on their shoulders and they don't ever walk in a room with their head down, feeling like they aren't good enough," she explained.

Catch the all-new episode of "Dance Moms" on September 19 at 9/8c.