Watch the Explosive 'Arrow' Season 4 Trailer

Arrow Season 4 Costume - H 2015
Warner Bros. Entertainment Inc

The Green Arrow has officially arrived.

Stephen Amell shared the first trailer for season four on his official Facebook page, and it's filled with explosive action, loving "Olicity" moments, and glimpses of new characters heading to the newly renamed Star City.

When Arrow season four premieres, gone is the vigilante Arrow. After driving off into the sunset at the end of season three, Oliver and Felicity (Emily Bett Rickards) are far away in Star City, playing house and generally living "happily ever after." But when Damien Dahrk (Neal McDonough) and his HIVE army prove to be too much for Diggle (David Ramsey) and Laurel (Katie Cassidy) and Thea (Willa Holland), they're forced to bring Oliver back to level the playing field.

"We're really exploring the notion of family and what that means," executive producer Wendy Mericle tells The Hollywood Reporter. "Oliver being in a relationship with Felicity is obviously a huge component of season four. Also, what does family mean to the team and to individual members of the team? And now that Oliver's faith in humanity has been restored via his relationship with Felicity, that will be challenged by our new villain Damien Dahrk, so how will he maintain his faith in people over the course of the season?"

Check out the new season four trailer below.

Arrow season four premieres Wednesday, Oct. 7, at 8 p.m. on The CW.