Alias (2001)

S3E21 Legacy

Sydney and Vaughn join forces with Katya Derevko and Toni Cummings, a CIA security systems expert currently in prison, to find Sloane and Nadia. However, Lauren and Sark are also on their trail, eager to unlock Rambaldi's mysteries. As Vaughn's fixation on locating Lauren intensifies, it starts to take over his life. In a twist of fate, Sydney and Vaughn confront a familiar enemy, while Katya reveals her feelings for Jack, adding another layer of complexity to their mission.