During one of Odysseus and his men's adventures, they were gifted a magical bag of wind. When they were just about home, the men got curious and opened the bag, blowing the ship into uncharted waters.
A goddess tells Odysseus that to get home, he must venture through the Underworld and talk to a prophet. While there, he sees his mother, who had died from missing her son. They also go through more trials, which kill all of Odysseus's men.
Odysseus ended up at a very welcoming kingdom. The king knew of Odysseus, and helped him by providing supplies and a new boat.
He sails back to Ithaca, and Athena appears again. She warns him of the many suitors at his home, wanting to marry his wife, Penelope. To protect him, he is transformed into an old beggar.
During this time, Penelope arranges a challenge that she knows only Odysseus can complete, so she can get rid of the suitors. Odysseus reveals his identity to his son, Telemachus, and two of his servants. Together they come up with a plan to get rid of the suitors.
Odysseus, still disguised as the beggar, tries the challenge Penelope crafted. The suitors laugh at him, knowing that not even they could successfully complete the challenge. He succeeds, and his identity is revealed. Odysseus and Telemachus, along with the gods and goddesses, kill all of the suitors, and go to find Penelope. She distrusts him at first, unsure of his identity. However, he proves it to her by knowing something only the two of them would know.