"The Undertaking" - Finding it difficult to mend fences with Tommy and Diggle, Oliver instead focuses on crossing another name off the list. While digging through a crooked accountant’s laptop, Felicity discovers a transaction that could help Oliver find Walter. To reconfirm the lead, Oliver gambles that Felicity can be counted on in the field for the first time. Michael Schultz directed the episode written by Jake Coburn and Lana Cho.
Episode 21 of Arrow ("The Undertaking") airs on Wednesday, May 1st on The CW.