Zoom drops Sand Demon through the rift into an alley and tells him to kill the Flash in episode 2x02 "Flash of Two Worlds".
Dan meets Malcolm in the in the alley in episode 1x08 "Et Tu, Doctor?".
Oliver talks to Laurel after she leaves the police station in episode 1x13 "Betrayal".
Chris films the police at a protest where they shot a zombie in episode 1x02 "So Close, Yet So Far".
Ford lands in the streets of San Francisco after his HALO jump.
Elle loads Sam onto a school bus for evacuation.