AceShowbiz -

The first teaser for the upcoming fifth season of "Teen Wolf" has landed online for viewing pleasure. Also aired during the 2015 MTV Movie Awards on Sunday, April 12, the short promo teases the new creepy villains.

"The doctors will see you now," so reads a tagline in the video, which also features Scott and his pack, including Stiles, Lydia, Malia and Liam. Dr. Deaton (Seth Gilliam) later says in a voiceover, "The rules have changed!"

"Teen Wolf" season 5 will launch this summer. Executive producer Jeff Davis recently told TVLine about the upcoming installment, "It's very much about our teenagers becoming adults and heading into their senior year. But as always, we bring in some new mysteries and new monsters. I think this season is very much about the line between science and supernatural."

Cody Christian, who plays Aria's brother Mike on ABC Family's "Pretty Little Liars", is added to the cast for season 5 to play a senior named Theo. His character has been described as "a lone wolf who is drawn to the spooky California town in search of a pack. He's described as athletic and charming yet covert, and while it may appear that the young adult is new to town, his past might suggest otherwise."

Meanwhile, Tyler Hoechlin who played Derek Hale since the first season of the MTV series won't return as series regular to focus on his movie career. Davis, however, teased that Derek might still be featured in season 5 in recurring capacity.