Oliver wakes up to a life in which his parents are alive and he is about to marry Laurel; Felicity faces a new threat with the help of The Flash and Supergirl. <br /> <br />Director: James Bamford <br /> <br />Writers: Greg Berlanti (developed by), Marc Guggenheim (developed by) <br /> <br />Stars: Stephen Amell, David Ramsey, Willa Holland <br /> <br />THE FLASH, Arrow, Legends, Supergirl - Extended Preview - S3E08 "Invasion!" - 4 Night Crossover Event - The CW
