Roswell, New Mexico Ep. 6: Smells Like Teen Spirit presents a series of flashbacks to 2008, where secrets are uncovered about Rosa’s final day, Isobel’s (Lily Cowles) mysterious blackouts and Alex (Tyler Blackburn) and Michael’s (Michael Vlamis) relationship in high school. Jeanine Mason, Nathan Parsons, Michael Trevino and Trevor St. John also star…