Zoom drops Sand Demon through the rift into an alley and tells him to kill the Flash in episode #202 "Flash of Two Worlds".
Oliver talks to Laurel after she leaves the police station at the end of episode #113 "Betrayal".
Dan meets Malcolm in the in the alley in episode #108 "Et Tu, Doctor?".
Chris films the police at a protest where they shot a zombie in episode #102 "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.