OxyContin is on the market but faces a potential threat, Purdue’s vast influence reaches the town of Finch Creek, Bridget steps outside her DEA authority, and the criminal investigation of…

Amid prying eyes, Maddie tries to move on from Bill’s fall from grace. Dana Sue deals with problems in her kitchen. Helen makes a life-altering purchase.

While delays plague the trio’s renovation plans, Maddie strikes a deal with Bill, Dana Sue stresses out over work and home, and Kyle opens up to Noreen.

The town’s tongues start wagging over Maddie’s new friend, Dana Sue suffers a health scare, and Helen takes a legal threat personally.

During a secret concert, Scott and Stiles come up with a method to trap the new shapeshifter. At the same time, Allison’s mother comes up with a plan of her…

Derek becomes convinced that Lydia is the shapeshifter they’re after, forcing Scott to gather his friends — and even some enemies — to protect her.

When Lydia goes missing from the hospital, werewolves and hunters begin a search.

Isaac’s father is murdered; Scott, Stiles and Derek plan a break-out. At the same time, the Argent family remove the principal and Allison’s grandfather replaces him. Scott senses that another…

While Scott tries to keep Isaac from engaging in a deadly confrontation with the Twins in school, Stiles attempts to prove his theory that the killings have nothing to do…

Scott and Allison end up in a group date; an animal attack has Stiles’ sheriff father on the lookout.

There’s another animal attack involving Lydia and Jackson, raising more questions about wild animals. Meanwhile, Scott and Allison skip school and Derek must deal with the werewolf hunters on his…

Scott tries to control his transformation so he can spend more time with Allison. Elsewhere, Derek continues trying to make an ally of Scott.

The hunt is on for Derek’s whereabouts, meanwhile Stiles tries to help Scott with controlling his transformation when a second full moon is approaching.

Jackson seeks out a specialist regarding the wound on his neck.

Every story and battle comes crashing together.

Groups unite their forces and converge on the Hilltop; Aaron and Enid search for allies; Simon takes matters into his own hands.

Conflict with the Saviors leads to unintended consequences for the Hilltop, the Kingdom, and Alexandria; morality proves tricky in wartime.

With things looking up for Rick and the group, an argument breaks out at the Hilltop; the consequences of the decision are life versus death.

The plan involving Alexandrians, Kingdommers and Hilltoppers unfolds. As Rick continues to fight, he encounters a familiar face.