The CW has released the official synopsis for the May 18th episode of “Arrow” titled “Lost in the Flood.” The synopsis reveals that Felicity’s father Noah Kuttler will be assisting Team Arrow in their battle against Damien Darhk. It also teases that something bad is going to be happening the Thea in the episode that comes before it. You can read the official synopsis below.
“Lost in the Flood” — (8:00-9:00 p.m. ET) OLIVER FIGHTS FOR THEA; DONNA SMOAK FACES OFF WITH NOAH KUTTLER — Following the shocking events in the previous episode, Oliver (Stephen Amell) and Diggle (David Ramsey) race to rescue Thea (Willa Holland), while Felicity (Emily Bett Rickards), Curtis (Echo Kellum) and Noah (guest star Tom Amandes) join together to stop Darhk (guest star Neal McDonough). Glen Winter directed the episode written by Brian Ford Sullivan & Oscar Balderrama (#422). Original airdate 5/18/2016.