"Oliver Queen is dead," says Malcolm Merlyn (John Barrowman) with a sense of quiet finality in the latest "Arrow" promo. The new teaser for "Left Behind," the CW series' 2015 return episode, picks up where the midseason finale left off -- with series protagonist Queen left for dead at the bottom of a cliff. With the Arrow gone, the twenty-second teaser fills us in on what's going to happen to the series in the hero's wake. Cops come under fire, villains pledge to take control, heroes rush into action and darkness threatens to rise.

Even with a brief running time, the promo gives us a glimpse at the heroes that will rise to fight back the encroaching darkness. You can spot Ray Palmer (Brandon Routh) testing out a weapon, Arsenal (Colton Haynes) running through a tunnel and Laurel Lance (Katie Cassidy) taking her new Canary costume out for a spin.

"I don't know what happens next," says Diggle (David Ramsey) in the clip's final seconds. To find out for yourself, check out "Arrow" when it returns to the CW on January 21. Until then, you can watch this promo on repeat.