Episode 4×03 of Arrow titled Restoration airs tomorrow on The CW. Executive producer Wendy Mericle goes inside the episode in this video. She talks Laurel, Thea, and the growing tension between Diggle and Oliver.
https://www.youtube.com/watch?v=EYk3TJnCy0I
The growing tension between Oliver (Stephen Amell) and Diggle (David Ramsey) puts both their lives at risk when they go after Damien Darhk (guest star Neal McDonough) and a H.I.V.E. deployed meta-human. Meanwhile, Laurel (Katie Cassidy) talks Thea (Willa Holland) into returning to Nanda Parbat to ask her father (John Barrowman) to put Sara (guest star Caity Lotz) into the Lazarus Pit.
