A shocking beating that aired on TV has triggered a police investigation.
Amber Portwood, one of the moms featured on the show, lost her temper when her baby's father came to visit.
She slapped him, punched him, and at one point during the foul-mouthed tirade, she kicked him in the back as he walked downstairs.
Now police in their hometown of Anderson, Indiana have launched a domestic-abuse investigation.
They were tipped off by viewer complaints.
But it's not the first time Portwood has shown her temper. Their baby was in the room during an earlier incident caught on tape.
Teen Mom has become a national phenomenon, the second most popular show on MTV behind the pop culture phenomenon Jersey Shore.
In recent weeks the reality show has been featured on the cover of People, US Weekly, Ok!, and Life & Style.
Now that the violent incident has received so much attention, there are bound to be more headlines to come.