It has become a one-way mission, a kind of kamikaze attack on the Xindi weapon. Archer decides to fly it himself because he feels he can't be responsible for any more killing. Unfortunately, he is captured before he can deliver the payload. Prior to his departure he receives a visit from Andrews who tells him that he must not die on this mission. The future would be changed with horrible results. He must survive and he must negotiate. Archer won't buy this and goes off. He has been given artifact from the future to negotiate with. The warm blooded Xindi are somewhat receptive because they are analytical, but the reptilian seem to control things. As the episode ends, the Enterprise comes under deadly attack with great loss of life and damage. Certainly, one of the most exciting episodes in Star Trek history.