Lydia (Holland Roden) is close to solving the mystery behind Sheriff Stilinski's (Linden Ashby) difficulty of remembering his son Stiles (Dylan O'Brien). Meanwhile, the pack will be planning one big rescue plan for Stiles in the next episode.

The next episode will be titled "Blitzkrieg," and it will focus on the plan that Lydia, Malia (Shelley Hennig), and Scott (Tyler Posey) will try to carry out to save Stiles. Their plan, however, will make them an easy target for the Ghost Riders. But as what Stiles said in the promo, "As long as somebody is left in Beacon Hills, the Wild Hunt can't move on."

Perhaps it will be Sheriff Stilinski who saves Stiles now that he is convinced that everything that Lydia has been saying about him is true.

As teased in the latest episode of "Teen Wolf," Stiles' disappearance might even have to do with Claudia (Joey Honsa), Stiles' mother, who is supposed to be dead.

In episode 7 of the last season of "Teen Wolf," viewers saw Lydia trying to figure out why Claudia, who is supposed to be dead, somehow rose from her grave, as if she never died or suffered from frontotemporal dementia.

The official Twitter page for "Teen Wolf" shared a clip of the episode wherein Lydia was telling her mother about the recent developments in Stiles' disappearance. The page wrote, "Lydia, might be on to something! #TeenWolf" Along with the teaser, the official account shared an emoji seemingly pondering on the issue.

In the episode titled "Heartless," Lydia comes to the conclusion that the Sheriff is using Claudia to fill the void of his missing son. Claudia tried to convince the Sheriff that they don't have a son and she even tried to get him to drop the search.

Somehow, Claudia's appearance is linked with Stiles' disappearance. When Lydia and the Sheriff discover the room that was supposedly Stiles', Claudia has a look of terror in her eyes.

When Lydia enters Stiles' room, she feels a surge or nostalgia, and she starts to remember him more.

"Teen Wolf" season 6 airs Tuesdays at 9 p.m. EST on MTV.