By Alexis Tereszcuk - Breaking Celebrity News Senior Reporter

Kody Brown and his four wives have one very strong unifying belief, their religion, and when one of their daughters says she might feel differently things get very tense in the house.

The polygamist family struggles with blending the four families and in a sneak peek of the upcoming season of Sister Wives obtained by Breaking Celebrity News the cracks are beginning to show.

“We want our children to choose this faith,” fourth wife Robyn says, but one of the older daughters disagrees.

“I don’t necessarily believe it is right for me,” she says in a shocking revelation.

Watch the clip to also find out which one of Kody’s wives “doesn’t feel special anymore.”

Sister Wives airs Sunday at 9pm on TLC.

Take a look at the sneak peek on Breaking Celebrity News below:

RELATED STORIES:

Sister Wives Are Back! It’s Not A Harem!