Matt Baier is finally stepping up as a father to one of his many children, but could his good deed cost Amber Portwood custody of her daughter?
In a Teen Mom OG extended trailer, Gary Shirley fears for Leah's safety when Portwood allows Baier's troubled son to live with them.
In the sneak peek, Baier's son Chris vows he "doesn't plan on abusing drugs again."
Baier then tells his fiancée, "I think we should offer him a place to stay and see if we could straighten him out."
But Shirley isn't a fan of the idea, as he asks his wife Kristina Anderson, "Is there drugs there? What if it's on a weekend when Leah's there?"
As Radar readers know, Baier's son called him a "scumbag" and an "evil, evil man" in an exclusive interview with RadarOnline.com.
"I had no father figure in my life," he told Radar of his father abandoning him and his mother. "I hate that man, for everything he is and isn't."
The drama comes only months after Portwood agreed on 50/50 custody with her baby daddy. She lost primary custody of her daughter Leah, 7, in 2011 when she served 17 months in prison for drug possession charges.
Watch The Trailer On RadarOnline
Also in the trailer, Catelynn Lowell continues to struggle with depression and anxiety despite a 30-day stint in rehab.
"I feel like my mental illness ruins everything," she said. "My life would be so much better if I wasn't around."
Her issues are also affecting her marriage to husband Tyler Baltierra, as he confessed, "I can't do this forever, no way."
There is also trouble in paradise for Farrah Abraham, as she calls her on-again, off-again boyfriend Simon Saran a "negative person."
But the drama doesn't end there.
As Maci Bookout gives birth to her third child and prepares for her upcoming wedding to fiancé Taylor McKinney, her baby daddy Ryan Edwards is called a "blood-sucking leech" by his own father.
Teen Mom OG airs Mondays at 9/8c on MTV.
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