Viewers will finally get to see where Stiles has been in "Teen Wolf" season 6, episode 5. Lydia, Scott and Malia discovered some evidence of his disappearance. Meanwhile, inside the Wild Hunt, Stiles will meet an unexpected ally -- Peter Hale.

Peter has not made an appearance in the series since he was locked up in Eichen House at the end of "Teen Wolf" season 4. However, showrunner Jeff Davis teased his return in season 6 at the New York Comic Con in October. After feeling dejected and thinking maybe Stiles didn't exist, Lydia, Scott and Malia found a "relic" Stiles left behind in "Teen Wolf" season 6, episode 4. What is the connection of his long lost jeepney to his disappearance?

Meanwhile, Peter won't be thrilled to be together with Stiles especially after learning that nobody noticed that he has been missing. Still he is also Stiles' only hope to get out. A sneak peek video of "Teen Wolf" season 6, episode 5 shows Peter asking Stiles how long he has been gone and he will be quite disappointed to know he has been lost for three months. Stiles will ask him if he knows anything about the place or if he knows how they can get out -- they are trapped in what looks like a creepy train station in another dimension.

However, Peter's answer is not what Stiles would like to hear. He will say they are in Wild Hunt and they cannot escape. "We can't get out of here Stiles because this place is real," Peter says but Stiles won't understand what he's talking about. In the promo video for the upcoming episode, Peter says they are already forgotten but Stiles is still optimistic someone might have remembered him.

"Teen Wolf" season 6, episode 5 titled "Radio Silence" will air on Tuesday, Dec. 13, at 9 p.m. ET on MTV. Watch the preview below: