They're back! Teen Mom 2's season 7 trailer shows the latest drama for stars Jenelle Evans, Kailyn Lowry, Leah Messer and Chelsea Houska.

The MTV series' promo for the March 21 premiere reveals that Evans is dating a new man after splitting from ex-fiancé Nathan Griffith. She is also trying to regain custody of son Jace, 6, from her mom, Barbara.

"Three things that I don't want to talk about: you in custody, Nathan in custody and then my pending charge," the mom of two tells Barbara.

Later, Evans' beau gets into a tense confrontation with Barbara as she shouts at him, "You are the worst boyfriend she's ever had."

The series' other ladies are facing their fair share of issues as well. Lowry finds out that husband Javi Marroquin is deploying for the Air Force, Messer loses full custody of her twins and Houska prepares to face ex Adam Lind in court.

Watch the intense trailer in the video above.

Teen Mom 2 returns on MTV on Monday, March 21, at 10 p.m. EST.

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