Christian claims his ex-wife, Crystal, has turned their two children against him and uses them as a weapon to get money.

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

“My ex-wife Crystal won’t let me see our children because she thinks I’m messed up on drugs,” says Christian who admits he used to have a drug problem but says he’s now sober.

WATCH: Woman Taken To Task For Interrogating 8-Year-Old Stepson

Christian’s new wife, Amy, adds, “Crystal is fake and two-faced, and she’s vindictive. Crystal deliberately sends text messages to start arguments. She says, ‘You’re a bad father. You’re a piece of [expletive].”

Crystal says she will not allow Christian to see their 12-year-old daughter and 8-year-old son because she claims he is a “bad dad” who torments her, refuses to bring the kids home after visitation and will not pay child support because God told him not to. Watch her story here.

WATCH: 12-Year-Old’s Plea To Dr. Phil: ‘I Am Asking You, Begging You, Please Help Make My Childhood A Little Easier’

Turning to Dr. Phil for help, Christian, who hasn’t seen his children in eight weeks, says, “I don’t know why Crystal’s become so resentful and so hateful.”

Is Crystal protecting her children or is she keeping them away from their father out of spite? See what Dr. Phil uncovers on Thursday’s episode. And, hear from two of the children. Check here to see where you can watch.