While Grant Lucas is in Dodge to testify in court against Cy Welch, Grant goes into the Long Branch for a drink. While Grant is at the Long Branch, he sets up a late night meeting with one of Miss Kitty's saloon girls, Mae Talmey. When Grant goes to Mae's house later that evening, Mae shoots Grant clamming that she thought Grant was trying to rob her; however, Matt does not believe Mae's story. When Doc tells Matt that he used to know Cy Welch from Doc's days on the Mississippi river. According to Doc, Cy Welch was some kind of riverboat gambler. Doc also tells Matt that Mae Talmey was also there in those days as well. When Matt hears this information from Doc, he makes the connection between Cy Welch and Mae Talmey. Matt goes to Mae's house to ask her some questions about this, but when Matt arrives at her house, he stumbles into a deadly scene. (thetvdb.com)