(Photo: WB/CW)

The CW has released the official synopsis for the upcoming Season Four premiere of Arrow, titled "Green Arrow."

Introducing Neal McDonough as Damien Darhk, the episode picks up months after Oliver and Felicity drove off into the sunset, as Black Canary comes to Oliver to tell him the Arrow is needed back in Star City.

“Green Arrow” — (8:00-9:00 p.m. ET) (TV-14, LV) (HDTV)

MY NAME IS THE GREEN ARROW — Oliver (Stephen Amell) and Felicity’s (Emily Bett Rickards) blissful getaway is cut short when Thea (Willa Holland) and Laurel (Katie Cassidy) pay them a visit and tell Oliver they need his help back in Star City. The city has been attacked by “Ghosts,” assassins led by a dangerous man named Damien Darhk (guest star Neal McDonough). However, when Oliver returns, Diggle (David Ramsey) makes it very clear that he doesn’t want Oliver on the team. Thor Freudenthal directed the episode with story by Greg Berlanti & Beth Schwartz and teleplay by Marc Guggenheim & Wendy Mericle (#401).

Arrow returns with new episodes on October 7 at 8 p.m. ET/PT on The CW.