In Night, the rising action is when Elie and his family are put on the train to Auschwitz. Once the family is on the train, they are herded together like animals. This is the beginning of the nightmare Elie is about to face. This is the point where everything changes. Elie doesn't realize it now, but his life will never be the same again. Elie will be faced with the most despicable of human actions. Elie will face his own mortality and that of his father's. Elie will begin to ask questions about his faith and have it tested beyond limits.
The climax of the story is when the concentration camp is finally liberated. Elie has lost everything that ever mattered to him. His family was killed, he thinks he has lost his faith, and the life he once knew is no longer available to him. Yes, Elie is physically free, but spiritually and emotionally, he doesn't know if he will ever be free again. Elie overcame the most horrendous of situations, but now he has to face living again. When he was in the concentration camp, Elie just did what he had to do to survive, but now he has to make an effort of really living.
The rising action begins when Moshe the Beadle returns from being expelled and tells the village of Sighet that all the others who were exiled have been killed. It continues with the train trip to Birkenau and then Auschwitz and finally to Buna where Eliezer begins to work at an electrical equipment warehouse. He and his father are brutally treated by the men in charge of the warehouse. Eliezer also witnesses the slow death of a child and Eliezar begins to really question God. Then, the Eliezar, his father and other men are transferred to Gleiwitz and finally to Buchenwald, where the climax of the story occurs. Eliezar's father dies and Eliezar finally feels freedom. To parallel that feeling of psychological freedom, the camp is finally liberated on April 10, finally giving Eliezar physical freedom as well.