Sneak Peek new images and synopsis from the 21st episode of "Arrow", titled "The Undertaking", written by Jake Coburn and Lana Cho, directed by Michael Schultz:
"...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.
"In a flashback, 'Malcolm' reveals to 'Robert Queen' and 'Frank Chen' painful details surrounding his wife’s murder, and how that shaped his plans for the Glades. Meanwhile, 'Tommy' stuns 'Laurel' with the truth..."
Click the images to enlarge...