Chatokay told Yerid about the kidnapped crew of USS Voyager, which Yerid at first did not believe. Seven of Nine also contacted him and expressed her concerns that more than a hundred employees started work on the same day, and most were the same species. Yerid informed her that he had been relieved of duty, but he did not stop his investigation. He contacted Kathryn Janeway, and eventually formed an alliance with her, Jaffen, Seven and Tom Paris to get to the bottom of the conspiracy. He helped Seven free Chakotay and Tuvok.