Things are starting to get pretty intense on 'Chuck' (Mon., 8PM ET on NBC). First, Chuck (Zachary Levi) was forced to kill in order to become a real spy. And now, Chuck is forced into a life-or-death situation again, in order to save the woman he loves.

Watch the video after the jump.Things are starting to get pretty intense on 'Chuck' (Mon., 8PM ET on NBC). First, Chuck (Zachary Levi) was forced to kill in order to become a real spy. And now, Chuck is forced into a life-or-death situation again, in order to save the woman he loves.

Agent Shaw (Brandon Routh) has learned that Sarah (Yvonne Strahovski) was the agent who killed his wife. And now, Shaw is out for revenge. Everything leads to a final showdown at gunpoint. "You can't do this," Chuck says to Shaw. "No, Chuck, I can. You can't," says Shaw.

It's Chuck versus Shaw. One lives... one dies.