When Liz Ortecho (Jeanine Mason) reluctantly returns to her tourist-trap hometown of Roswell, New Mexico, she reconnects with Max Evans (Nathan Parsons), her teenage crush, who is now a Roswell police officer. But Liz soon discovers a shocking truth: Max is an alien who has kept his unearthly abilities hidden his entire life, along with those of his otherworldly sister, Isobel (Lily Cowles), and their friend Michael (Michael Vlamis). Elsewhere, Master Sergeant Jesse Manes (Trevor St. John) spearheads a long-standing government conspiracy - unbeknownst to his son, Alex Manes (Tyler Blackburn), who has recently returned from service overseas with emotional and physical injuries. The politics of fear and hatred that run rampant in Roswell threaten to expose Max and his family and could endanger his deepening romance with Liz... as well as their lives.