"Home Invasion" - Deadshot (guest star Michael Rowe) returns to Starling City after taking down a U.S. Ambassador and six others overseas. By keeping tabs on A.R.G.U.S.'s manhunt for the assassin, Oliver (Stephen Amell), Diggle (David Ramsey), and Felicity (guest star Emily Bett Rickards) learn that a sting operation is underway to capture Deadshot - alive. Diggle is determined to see his brother's killer dead, with or without Ollie's help. Meanwhile, Laurel (Katie Cassidy) takes drastic steps to protect a young witness, exacerbating friction between Tommy (Colin Donnell) and Oliver. Ken Fink directed the episode written by Ben Sokolowski & Beth Schwartz.
Episode 20 of Arrow ("Home Invasion") airs on Wednesday, April 24th on The CW.