After John Wick has completed the task assigned to him by Santino: eliminating the latter's sister, Ares and a team of hitmen ambush him. John survives the attack and returns to New York to kill Santino. Ares is eventually killed while attempting to defend her employer.
Skills and Abilities:
Ares is among the deadliest assassins shown in the series. She was skilled enough even to challenge John, though she was ultimately no match for him.