Clark discovers that Jor-El was on Earth forty years ago. Lana’s great uncle, who was convicted of murdering his wife forty years ago, shows her a picture of the man…

While Barry strives to become fast enough to defeat Reverse-Flash, Captain Cold returns to Central City with a partner and takes Caitlin hostage to force a confrontation with the Flash.

Barry and the team go after the Mist, who possesses toxic gas powers, and they reflect on the night Caitlin’s fiancé died. Meanwhile, Henry gets a long-awaited visit from Joe,…

Jody Mills is matched with an overeager partner during a mandatory sheriff’s retreat; when a gruesome corpse is discovered, Jody calls Sam and Dean to help investigate.