Danton Black meets with Java in an alley in episode 1x02 "Fastest Man Alive".
Wally heads to an industrial area to throw the last piece of the Philosopher's Stone into the speed force and Barry arrives too late to stop him in episode 3x15 "The Wrath of Savitar".
Oliver chases a Vertigo dealer in order to identify his supplier in episode 1x12 "Vertigo".
Laurel and Roy attempt to ambush Brick but end up getting one of the aldermen killed in episode 3x11 "Midnight City".
A woman under attack in an alley is saved my Laurel as Black Canary who is in turn saved by Roy as Arsenal in episode 3x11 "Midnight City".
Oliver and Tatsu go to the port to save Maseo and Akio in episode 3x07 "Draw Back Your Bow".
The team sets up an ambush for the corrupt cops in episode 4x04 "Beyond Redemption".
The team heads into the building from the GPS and locate the hideout of the corrupt police officers in episode 4x04 "Beyond Redemption".
Oliver rides his parachute down after falling from Church's helicopter in episode 5x01 "Legacy".
Jimmy takes Grace to the docks to kill the man he suspects is the mole in episode #101 "The Aquarium".
From episode #101 "The Aquarium".