Ronin shows a brutal side. Don't know why the episode is called Trinity. McKay shows even more why he is the weak link in this series. I wish the producers could have chosen a different actor. He's always hyperactive. He talks so fast that you can't understand what he's saying. There is no way you could warm to him. Hope he gets Wraithed sooner than later. Does nothing for this franchise. All other actors/characters are great.