Underneath: Things get intense when Oliver (Stephen Amell) and Felicity (Emily Bett Rickards) are trapped in the bunker together. Meanwhile, Lyla (guest star Audrey Marie Andreson) and Diggle (David Ramsey) deal with their martial issues.
Wendey Stanzler directed the episode written by Wendy Mericle & Beth Schwartz.
Series: Arrow Season 5 Episode 20
Air Date: Wednesday, May 03, 2017
Time Slot: 8:00 PM-9:00 PM EST on The CW