Season 2 Episode 10 (Second Wave): Julian averting his destiny by explicitly renouncing a violent end to Kiera while proving to his group why he's their leader.
Emily fights Travis hand to hand, and actually manages to mildly annoy him. That might not sound like much, but it's more than the cops, a prison riot, and every single gang in the city ever managed. She would have done better if she had known he was a super-soldier, since she would have skipped the warning shot and gone straight for the kill.
Season 2 Episode 12 (Second Time): Kiera getting the best of Travis on the elevator.