Corey Simms and Leah Messer are seen facing off over the custody of their 6-year-old twins in the recently-released trailer for Teen Mom 2 season seven.

'Teen Mom 2' Corey Simms Spent His Weekend With Leah Messer?!

Although Messer initially lost primary custody of the girls in October of last year, fans are just now seeing her heartbreaking battle play out on film.

"Corey is trying to take our kids from me," Messer is seen telling a friend in the season seven preview, which was shared by PEOPLE Magazine on Monday. "What's life without your kids?"

'Teen Mom 2' Corey Simms & Ex-Wife Leah Messer Embark On New Custody Agreement

"You got virtually everything you asked for... primary legal custodian," Simms' lawyer is later seen telling him, as Messer is left in tears.

Following Simms and Messer's October court hearing, Simms was put in charge of caring for their children from Monday until Friday, while Messer only had her children on weekends. However, months later, as Us Weekly revealed, Messer regained time with her girls, and was awarded with joint custody and rights from Thursday until Sunday.

“Leah is doing great,” a source told the magazine at the time. “She had confidence that she would be proven right and get her custody rights back.”

Simms and Messer also agreed to split the girls' bills 50/50.

For more of Corey Simms and Leah Messer's custody battle, tune into Teen Mom 2 season seven, when the new installment premieres on March 21 at 10 p.m. on MTV.

Tags: Teen Mom 2 leah messer Corey Simms MTV Reality TV