Oliver chases a shooter on a motorcycle but loses her in an alley in episode #107 "Muse of Fire".
Oliver says goodbye to Mari behind the police station in episode #415 "Taken".
Vixen runs down an alley and flies into the air in episode #415 "Taken".
A group of criminals run down an alley while firing into the air behind them in episode #415 "Taken".
Oliver and his father are attacked after their final fitting and are saved by a mysterious hooded figure in episode #508 "Invasion!".