Tonight's episode of "Arrow", "What We Leave Behind," is the midseason finale, and thus, the last new installment for more than a month. But you don't have to wait until 8 p.m. (7 p.m. central, natch) to see part of the episode, as CBR has an exclusive clip, which you can view above.

In the clip, Curtis Holt (Echo Kellum) is arguing with his husband, Paul (Chenier Hundal), who's rather suspicious since he doesn't know that Curtis has been absent recent nights because of his career as the costumed vigilante Mister Terrific, part of Team Arrow. Before Curtis can explain, Prometheus -- the mysterious villain at the center of "Arrow" season five -- arrives and launches a violent attack on Curtis.

Here's the official network synopsis for "What We Leave Behind":

PROMETHEUS MAKES A DEADLY MOVE AGAINST OLIVER AND THE TEAM - After Prometheus attacks Curtis (Echo Kellum), Oliver (Stephen Amell) realizes Prometheus knows all of Team Arrow's secret identities and is planning to come for them one by one. Felicity (Emily Bett Rickards) and Detective Malone (guest star Tyler Ritter) discover a clue that links Prometheus to Oliver's past. Antonio Negret directed the episode written by Wendy Mericle & Beth Schwartz (#509).

The midseason finale of "Arrow" airs at 8 tonight on The CW.