A new, full-length trailer for ‘Teen Wolf’ Season 5 brings on some of the most dangerous and surprising moments that fans may not have prepared for.

Tyler Posey returns as Scott McCall as he and his pals return to school for their senior year, although they may not necessarily find the time to have some fun.

Scott’s pack is up for new challenges this time while the entire season has been set for some major changes. These include Lydia, the Beacon Hills’ resident banshee, to be locked up in Eichen House or some kind of mental institution. In the clip, she also appears to be having a breakdown as the doctors conduct an interrogation about her experiences in her senior year.

Scott’s pack could also be getting bigger as he will be getting into an important conversation with Theo, played by Cody Christian, who is known as a lone wolf and would need protection.

As he is a stranger, it has become a question whether Scott would be willing to take risks and protect Theo.

“Everybody knows that lone wolves, they don’t make it on their own,” Theo explains.

Aside from dealing with strangers, Scott will also have to deal with close pal Stiles (Dylan O’ Brien) this year.

 “Why don’t you trust anyone?” Scott asks. “Because you trust everyone!” Stiles answers.

In addition, the new promo also shows people possibly wearing gas masks who may be the new villains called the Doctors, as what have been teased this year.

Aside from such group, another villainous character glowing bright blue might bring on new struggles for the fifth season. It remains uncertain whether he or she is a member of the Doctors or is an entirely separate villain.

Meanwhile, fans are also questioning whether there is still hope for Stiles and Lydia as he is shown exchanging a kiss with Malia in the first part of the trailer but seems to be holding on to very close to Lydia in the middle of the clip.

Finally, a car accident was shown in the trailer as a police van meets an accident and a character could be seen in a lifeless form in the midst of the unfortunate event. Although it is not the Sheriff (Linden Ashby), it has been speculated to be Parrish (Ryan Kelley.)

For more of these upcoming moments on ‘Teen Wolf’ Season 5, the promo video is available below.

“Teen Wolf” Season 5 makes its debut on June 29, Monday, at 10 p.m. EDT on MTV.