Jason Griffith

Jor-El strips Clark of his powers, making him human. Delighted to finally be `normal', Clark pursues a relationship with Lana. However, after Lana, Jonathan and Martha are taken hostage by three thugs.

The agents investigate a series of electrical deaths linked to a teenage boy who may be able to control lightning.

In the season premiere, Oliver must transform from vigilante to hero. Diggle and Felicity travel to the island of Lian Yu in search of Oliver, who left Starling City after the devastation of The Undertaking and his failure to avert it. Convinced to return home, Oliver finds that things are in much worse shape than he imagined – Isabel Rochev (recurring guest star Summer Glau) is preparing a hostile takeover of Queen Consolidated, Thea refuses to visit Moira in jail, Roy is trying to fill the void left by the Arrow's absence, and Laurel is working with the District Attorney's office to take down the vigilante. Meanwhile, flashbacks to the island show Oliver's mentors Slade (new series star Manu Bennett), Shado (guest star Celina Jade) and Oliver in a desperate situation.

The team track gravity-defying thieves, and Walter is determined to delay the damage he's done to the fabric of the universe.

Sam gets a reward from the Devil for a job well done, but finds that he's being set up for murder. Meanwhile, Sock becomes obsessed with Gladys the DMV demon.