Alias (2001)

S2E1 The Enemy Walks In

Sydney confronts her mother, who reveals her unsettling plans for her daughter. Meanwhile, Sydney is on a desperate quest for Vaughn, uncertain of his fate after he was engulfed by a torrent in Taipei. Will's world shifts dramatically when he discovers the reality of SD-6 and Sydney's role as a double agent. Dixon faces a tough choice about whether to alert Sloane regarding Sydney's questionable actions.