In his 20 years away from his home, Ulysses struggles through the Trojan War and a difficult journey home. He overcomes all the obstacles put in his path through his own wits and with the help of the gods. His lengthy struggle and the many betrayals seem to have affected him psychologically. He learns that he cannot trust people. He even approaches his son and wife while in disguise.
His father remains a suspect for disloyalty until Ulysses tests him. He tells Laertes a story about how his alter ego once gave shelter to Ulysses. He sees Laertes choke up and cry on hearing about his son, which proves his loyalty.