Writer: Thania St. John
Director: James Whitmore Jr.
Production Code: 1ADA16

First aired: April 10, 2000

Guest star: Julie Benz (Agent Kathleen Topolsky), Emilie de Ravin (Tess Harding), Hugh Benjamin (Delivery Guy), Yelyna De Leon (Sonia), Kevin Cooney (Dr. Margolin)

Description: Agent Toposky recognized hat the Aliens are in danger and she returns to Roswell, in order to warn them. But Max and the others do not trust her. Despaired she asks Sheriff Valenti to protect the young people. After that Ms. Topolsky gets kidnapped. In the meantime Isabel befriends with the new girl at school. Michael and Max are thinking rather distrustful abouth this friendship, since they fear that Tess could uncover their secret.