By Jennifer Griffin on May 18, 2017

ARROW “LIAN YU” SEASON FINALE

DEATHSTROKE, NYSSA AL GHUL, MERLYN AND DIGGER HARKNESS JOIN OLIVER’S BATTLE AGAINST PROMETHEUS

Episode 5×23 “Lian Yu” –– The battle between Oliver (Stephen Amell) and Adrian Chase (Josh Segarra) culminates in a final epic battle on Lian Yu. After recent events, Oliver decides to recruit a group of unlikely allies – Slade (guest star Manu Bennett), Nyssa (guest star Katrina Law), Merlyn (John Barrowman) and Digger Harkness (guest star Nick. E. Tarabay) – to defeat Chase.

However, Chase has his own army – Black Siren (guest star Katie Cassidy), Evelyn Sharp (guest star Madison McLaughlin) and Talia al Ghul (guest star Lexa Doig) – and the forces collide in an explosive season finale.

Jesse Warn directed the episode written by Wendy Mericle & Marc Guggenheim (#523).

Air Date: Wednesday, May 24 (8:00-9:00 p.m. ET) on the CW.