The CW has released a number of photos from next week's midseason finale of Arrow, titled "The Climb."

The episode sees Oliver Queen facing off against Ra's al Ghul, given an ultimatum to solve the mystery of Sara Lance's murder within 48 hours. What's arguably more surprising, though, is the identity of one of the people serving under Ra's al Ghul in the episode. Spoilers ahead.

You can check them out, along with the official synopsis, below.

“The Climb” — (8:00-9:00 p.m. ET) (TV-14, V) (HDTV)