CW DC Synopses May 22-24

The CW has released descriptions for the season finales of Arrow, Supergirl, and The Flash.

Supergirl 2x22 "Nevertheless, She Persisted"

SUPERGIRL FIGHTS FOR HER CITY; SUPERMAN RETURNS — Supergirl (Melissa Benoist) challenges Rhea (guest star Teri Hatcher) to battle to save National City. Meanwhile, Superman (guest star Tyler Hoechlin) returns and Cat Grant (guest star Calista Flockhart) offers Supergirl some sage advice. Glen Wnter directed the episode with a story by Andrew Kreisberg & Jessica Queller and teleplay by Robert Rovner & Caitlin Parrish (#222). Original air date 5/22/2017.

The Flash 3x23 "Finish Line"

SEASON FINALE – With nothing left to lose, Barry (Grant Gustin) takes on Savitar in an epic conclusion to season three. David McWhirter directed the episode written by Aaron Helbing & Todd Helbing (#323). Original airdate 5/23/2017.

Arrow 5x23 "Lian Yu"

DEATHSTROKE, NYSSA AL GHUL, MERLYN AND DIGGER HARKNESS JOIN OLVER’S BATTLE AGAINST PROMETHEUS — 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 (AR523). Original air date 5/24/2017.