With the Undertaking days away, Malcolm (guest star John Barrowman) dons his black hood to conclude business with seismologist Dr. Brion Markov (guest star Eric Floyd) and his team. Oliver (Stephen Amell) and Moira (Susanna Thompson) entertain a number of surprise – and mostly unwelcome – visitors. Hooded confrontations at home and the Meryln Global Group reveal dark secrets. Meanwhile, Roy (guest star Colton Haynes) and Thea (Willa Holland) are still looking out for a hero. Laurel (Katie Cassidy) makes a decision after Tommy’s (Colin Donnell) revelation. In a flashback to the island, Oliver, Slade (guest star Manu Bennett) and Shado (guest star Celina Jade) struggle to prevent Fyers (guest star Sebastian Dunn) from shooting a Ferris Air jet out of the sky. Paul Blackthorne and David Ramsey also star. Roger Cross and Bryon Mann also guest star.