Sam and Dean investigate an abandoned sanitarium and discover that when the hospital was open, the patients held a revolt against the cruel and unusual punishments inflicted by the head…

Sara and Roy become prisoners at the Slade and the only one who is able to save them is Oliver Queen.

While the Arrow trains Roy how to control his anger–and his super-strength–Bronze Tiger steals a prototype of Malcolm’s earthquake machine to sell to an arms dealer. Meanwhile, Laurel discovers that…

A.R.G.U.S. abducts Diggle and asks him to help recover Lyla from a Russian prison. Oliver and Felicity insist on going along to help and Isabel tags along. Meanwhile, Jean Loring…

Helena is back to seek vengeance, but Oliver still has feeling toward her. The Arrow must stop and kill her, but at what costs? Now that several of his closest…

Quentin Lance’s ongoing attempt to capture the vigilante is put to a halt when a recently released criminal kidnaps his daughter to get to Arrow. Meanwhile, John Diggle insists on…

A mysterious sniper called Deadshot is taking out bidders at an auction for an industry company. The bidders include Oliver’s stepfather, Walter Steele.

The students wake up to foggy memories and regret after a night of drinking; Penny reminds everyone that their lives depend on getting to The Neitherlands.

An uncompromising professor pushes boundaries both in magic and in the personal lives of his first-year students. Meanwhile, Julia must decide whether she’s ready to accept help and what that…

Castiel finds Jimmy’s daughter Claire in a group home and she convinces him to break her out. After she runs away from him, Castiel calls Sam and Dean to help…

After a suicide angel takes out an ice cream shop to kill one enemy angel, Sam and Dean investigate and discover that the target was one of Metatron’s angels… and…

Dean and Sam take a captive Crowley to the Men of Letters base in the hopes that he will give up the names and host bodies of his minion demons….

Sam and Dean respond to a call from Kevin, who is terrified after hearing Crowley’s voice in his head. After hearing Kevin’s news, Sam and Dean team up with a…

After Benny gets brutally beat up by some vampires, he calls Dean for help. Dean abruptly packs up and tells a confused Sam that he’s taking a “personal day.” Benny…

In order to defeat Dick Roman and the Leviathans, Sam and Dean must locate three key items. Castiel helps with one but for the last objects, the Winchesters must face…

Sam, Dean, and Bobby become actual hunters, in the true sense of the word, when they set up camp in a New Jersey state park to track a creature that…

The broken wall in Sam’s head causes him to have hallucinations, and he has difficulty discerning what’s real and what’s not. Bobby worries that Dean is beginning to stumble under…

While searching for a way to defeat Eve, Dean stumbles upon Samuel Colt’s journal in the Campbell library. Realizing Samuel might have the answer to their problems, Sam and Dean…

Dean becomes suspicious of Samuel’s motives, but Sam isn’t sold on the idea that their grandfather is doing anything wrong. The brothers go along on a hunt with Samuel and…