VIDEO: Sneak Peek - 'Unfinished Business' on The CW's ARROW

On the next episode of The CW's ARROW titled 'Unfinished Business", when a young woman meets a violent death after partying at Verdant, Detective Lance (Paul Blackthorne) and his new partner, Detective Hilton (guest star Roger Cross) inform Oliver (Stephen Amell) and Tommy (Colin Donnell) that she was on the drug Vertigo.

Meanwhile, Oliver immediately pays a visit to the mental institution where The Count (guest star Seth Gabel) is locked up, but finds he is in no condition to deal drugs. However, when The Count escapes and Starling City is flooded with even more Vertigo-related violence, Oliver and Diggle (David Ramsey) make it their mission to track him down. After Detective Lance uncovers incriminating evidence against him, Tommy goes to great lengths to clear his name, and the fallout from his actions leads Tommy down a new, unexpected path. I

n a flashback to the island, Oliver recalls the lessons he learned from Slade (guest star Manu Bennett) and Shado (guest star Celina Jade). Katie Cassidy and Emily Bett Rickards also star. Michael Offer directed the episode written by Bryan Q. Miller & Lindsey Allen

The series airs Wednesdays at 8:00/7c pm on The CW. Get a sneak peek below!

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