What situations in the novel night where someone risked his and her life to help someone else?

One example is when Moshe the Beadle escapes death and returns to warn the Jews of Sighet, risking his life to share the truth. Another is when the inhabitants of Sighet are transported in cattle cars, and a stranger sacrifices his safety to throw bread to the starving captives. Emil, a fellow prisoner, helps Eliezer survive in the concentration camp by offering him guidance and support at great risk to himself.