Teen Mom 2 premiere: Corey Simms accuses Leah Messer of having a drug problem, says 'start being a mom'

Teen Mom 2 will premiere with episode 1 of season 6 on Thursday, 9 July at 10pm EDT on MTV and the latest trailer, released by the channel, teases a lot of drama when stars of the show Leah Messer, Kailyn Lowry, Jenelle Evans and Chelsea Houska return.

A promo video shows Messer being confronted by her ex-husband Corey Simms and current wife Miranda Patterson about her alleged drug abuse. Reports also suggest that Messer may check into a "treatment facility" for the problem.

Further, footage from season 6 shows that Corey is keen on getting to the depths of Messer's issues, and does not go with her claim that "drugs are a non-factor".

Simms questions Leah in the promo, "Listen, can you look at me and Miranda in the eyes and tell us there is no drug problem?" Messer's reply follows quickly, "There isn't a drug problem."

Then Simms says, "I think I know that there's a drug problem, and I think that you're afraid to tell me. The first step is to admitting that you have a problem, rather than beating around the bush about a problem that you're making up so that you can avoid your real problems..."

But Messer fires back saying: "No, I swear to God there's not."

During the intense meeting, Simms and Miranda urge Messer to come clean about her recent parenting struggle.

"So you are owning up that you [aren't] the best person for your kids?" Miranda asks Messer, to which Leah, who recently divorced Jeremy Calvert replies: "I'm not going to say that I was a bad mom. I deal with more than what you guys think I do at home."

Simms then ends the conversation by saying, "Start being a mom. How about that?"

Meanwhile, MTV has released four new promo videos of season 6 -- one each for Kailyn Lowry, Jenelle Evans, Leah Calvert and Chelsea Houska -- where fans will get a sneak peek on what to expect in the show's upcoming season.

There are two divorces on the horizon, two nasty custody battles, numerous arrests, a potential drug problem and a lot drama. So, do not miss the new season of Teen Mom 2, which premieres on July 9 on MTV.