THE FINAL SHOWDOWN

According to Liz's most recent visions, a horrible death awaits Isabel in Los Angeles -- the same place where the Evanses, the Parkers, and one of the New York dupes are being held by the FBI's ruthless Special Unit. Determined not to allow Liz's dire prophecy to come to pass, Max sends his sister to Boston to reunite with her husband, Jesse Ramirez, accompanied by the newly-powered Kyle. What no one realizes is that an alien danger waits for these travelers in the shadows.

Meanwhile, Max's group hits L.A. and drafts their former alien protector to help plan and execute and all-out assault on the federal government's shadowy alien hunters. Now the Roswell teens and their dupes must work together in a desperate bid to beat the Special Unit at its own covert game. But can Max confront the feds directly -- and rescue his and Liz's parents -- without getting blood on his hands?