Roswell, New Mexico S04e04 -

: Michael continues trying to infiltrate the "Dark Triad" (Bonnie and Clyde). Bonnie reveals that the alien relics they are collecting are pieces of a device designed to take them back to Oasis—a device originally built by Michael's mother, Nora .

: The primary antagonist, Tezca , is revealed to be a powerful alien shapeshifter. She uses her abilities to impersonate Jenna Cameron and leads Max toward Jones's body in the desert. Max eventually realizes the deception when "Cameron" begins asking suspicious questions about Liz and displays an alien tattoo. Roswell, New Mexico s04e04

Roswell, New Mexico Season 4 Episode 4 Recap: “Dear Mama” : Michael continues trying to infiltrate the "Dark

You can find more detailed breakdowns on sites like Nerds and Beyond and Showbiz Junkies. Nora . : The primary antagonist