What happens when Odysseus returns?

Athena transforms him into an old man, and he goes into hiding. When he finds out about the men in his house wishing to marry Penelope (the Suitors), his wife, he and his son make a plan and eventually kill them. Some of the citizens now rise against Odysseus because he killed the Suitors (their family), but Athena intervenes and persuades both sides to give up the fighting.