Sly visited the prison, after McSweeney sent out messenger pigeons, in order to obtain the location of a map that led to Kaine Island, where the Cooper Vault was located. This map was later used during the events of Sly 3: Honor Among Thieves. During the time that he met McSweeney, Sly discovered that he was a part of his father's gang, which consisted of his father, Dr. M and McSweeney.