Get ready for lots more baby mama drama—Teen Mom is coming back for seconds.
Who are they?
• Leah Messer, a small-town cheerleader from Virginia with twin girls Aliannah and Aleeah, is dealing with the heartache of watching one of her babies develop slower than the other. Leah graduated from high school and tried to make it work with her daughters' father, Corey Simms, but ended up cheating on him.
• Jenelle Evanshas a problem with partying. With her baby daddy not around, she leans on her mom for help raising son Jace. She is struggling with the burden of being a young mom, is being sued by her own mom for custody of Jace and we see her sign over temporary custody of the baby.
• Chelsea Houska, a softball star and high school dropout from South Dakota, is raising daughter Aubree. The teenager has a crazy relationship with Aubree's dad, Adam, but has a solid relationship with her own father. She's working to get her high school diploma, attend beauty school and figure out where Adam fits in to her life after he called the baby "a mistake."
• Kailyn Lowry, who attempted to hide her pregnancy for months, is now raising baby Isaac, nicknamed "Izzy" with her boyfriend. After her own family threw her out, his family took her in. But the couple's non-stop fighting just keeps escalating.
The new series airs Jan. 11 on MTV.