Masquerade is the 18th episode of Season 1 of Alias. While on a case to track the activities of Khasinau, Sydney runs into her ex-lover, Noah Hicks, who broke her heart and left without saying goodbye five years earlier. Meanwhile, Sydney tells Sloane that she wants to find her mother; Jack is ordered to see a CIA psychiatrist to help him deal with his churning emotions after discovering that his wife may still be alive. Will and Francie become suspicious of Sydney's activities after finding one of her airline ticket stubs.