Coming to America for the first time, Wonder Woman comes upon a wailing army nurse. Inquiring about her state, she finds that the nurse wanted to leave for South America with her fiancé but was unable due to shortage of money. As both of them looked identical and Wonder Woman needed a job and a valid identity to look after Steve (who was admitted in the same army hospital), she gives her the money she had earned earlier to help her go to her fiancé in exchange for her credentials. The nurse reveals her name as Diana Prince, and thus, Wonder Woman's secret identity was created, and she began working as a nurse in the army.
Diana then arrives to stop Ares, and brings Steve Trevor to the US.Arriving in Boston, she meets Professor Julia Kapatelis. After fighting a monster named Decay sent by Phobos, a son of Ares, Diana, Julia and Steve discover Ares' plan: to start a nuclear war worldwide. Joined by Steve's friend Michaelis, the group travel to the military bases Ares' minions had taken control of and avert nuclear war. Ares