Barry and Oliver introduce Supergirl to the new fight club, Felicity and Cisco applying additional features to the fight in which The Flash, Green Arrow, Supergirl, White Canary, Firestorm and Atom need to fight to stay alive.
An Irish immigrant lands in 1950s Brooklyn, where she quickly falls into a romance with a local. When her past catches up with her, however, she must choose between two countries and the lives that exist within.
Spoiled billionaire playboy Oliver Queen is missing and presumed dead when his yacht is lost at sea. He returns five years later a changed man, determined to clean up the city as a hooded vigilante armed with a bow.