In tonight's midseason finale of Arrow, Prometheus will be making his big return and torturing all of Team Arrow, including Oliver Queen.
In the recently released clip (above) we see Prometheus saying he's not exactly going to kill Oliver, but he's going to make him "wish he was dead."
The episode will bring back psychologial villain Prometheus who somehow knows every detail about the new Team Arrow, including where they live and their true identities.
While we aren't exactly sure how Prometheus plans on doing that, we can assume it has something to do with Oliver Queen's past and will connect to all of his flashbacks, which will be ending with this episode.
“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.”
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Arrow airs on Wednesday nights at 8 p.m. ET/PT on The CW. "What We Leave Behind" will debut on December 7, 2016.