Derek (Tyler Hoechlin) Teen Wolf In "Teen Wolf" Season 4 episode 9, Derek tells Scott that he is losing his powers. Photo: Jaimie Trueblood/MTV

“Teen Wolf” Season 4, episode 9, airs on MTV Monday night, but you can watch a sneak peek video below. The episode, titled “Perishable,” will follow Scott as he and Liam attempt to go to the annual lacrosse bonfire, but a new assassin is after them. It looks like Scott will stop at Derek’s apartment before he heads to the bonfire.

When Scott gets to the apartment, he finds a gun on Derek’s bed. “I thought you didn’t like guns?” he asks.

Derek doesn’t respond, and Scott can tell something is wrong. “Does this have something to do with your eyes?” Scott asks.

Derek admits that it does. He tells Scott that his powers have been disappearing since Kate turned him into a teenager in the beginning of the season. “Whatever Kate did to me, it’s still happening,” he says.

Scott realizes that he has to tell Derek that his name was a cypher key for the dead pool. The first two keys were Allison and Aiden, both of whom were killed in Season 3. Scott senses a pattern, and Derek knows that a banshee picked the names.

“It could mean that you’re in danger,” Scott says.

“Scott, banshees don’t predict danger,” Derek says. Every “Teen Wolf” fan knows that banshees predict death.

Watch the video clip below:

“Teen Wolf” Season 4 episode 9 airs Monday at 10 p.m. EDT on MTV. Do you think Derek will die this season? Share your theories in the comments section.