The second part of Max and Liz's love story involves Liz's insecurities about getting in the way between the destined love between Max and Tess even though Max assures her that his heart only beats for her. This causes a rift between Tess and the rest of the gang, as she always feels unwanted. Right when Liz finally starts to believe that Max will deny his destiny of being with Tess, the "Future Max" appears to Liz claiming that they must find a way to get Max to fall out of love with her in order to save the future and the lives of everyone they know. This leads to a relationship between Max and Tess, even though Liz still has hope that she and Max will one day be together.
The second season introduces the Skins, another alien race from Antar who have been searching for the alien hybrids since they hatched. Their mission is to locate and turn them over to Kivar, who is now king of Antar. It is revealed that Liz's new boss, Congresswoman Whitaker, is a Skin and her brother Nicholas is the leader of the Skins. Along with a renegade Skin Courtney, a Crashdown Café waitress, who believes that Michael, not Max, should have been in charge of Antar, the group travels to the town where Congresswoman Whitaker is from and discover that the entire town is inhabited by Skins and that they are ready for the "Harvest". Skins unlike "The Royal Four" do not have a mix of alien and human DNA. In order to survive Earth's climate they create husks (fake bodies) which last around 50 years. Skins are so called because once their husks start to reach the end of their shelf lives they shed their skin.
Nasedo, the shape shifter who was protecting the teens as well as acting as a father to Tess, is killed by Congresswoman Whitaker at the beginning of the season. As Tess has nowhere to go, she moves in with Sheriff Valenti and his son Kyle. Shortly after, the "pod squad" destroys the Harvest. It is revealed during the "Harvest" that Isabel was named Vilandra on Antar. Vilandra was in love with Kivar, Max's enemy and rival, and she betrayed her family in favor of Kivar. This haunts Isabel so much that it creates a rift between her and Max when they find out that another set of clones of the Royal Four were created. The clones, known as the "dupes", are exact copies of Michael, Max, Isabel and Tess, only they grew up in the sewers of New York City. Their names are Rath (Michael's clone), Zan (Max's clone), Vilandra (aka Lonnie, Isabel's clone), and Ava (Tess's clone).
Rath, Vilandra, and Ava come to Roswell after killing Zan to convince Max to return with them and represent the family at a summit meeting of the families of the five warring planets. Max and Tess go with Rath and Vilandra to New York, while Ava stays in Roswell because she is haunted by the death of Zan. Nicholas returns as a voice for Kivar, and it is revealed that the owner of the UFO museum, Brody Davis was used by an alien many times to communicate on Earth, acting as a puppet, explaining why he believes he was abducted by aliens although he has no memories of the incident. Rath and Vilandra tell Tess and Max that if they give Kivar the Granolith[clarification needed] they can go home to Antar. Max remembers what Liz told him before he left—that "the Granolith could be dangerous if in the wrong hands" and turns down Kivar's deal. Lonnie betrays the others when she meets Nicholas in secret to discuss her desire to return to Antar, as she remembers more about her past life and wants it back, regardless of whether Kivar gets the Granolith. Nicholas tells her that can be arranged as long as Max is dead. The assassination attempt fails and Rath and Lonnie "disappear". Ava, still in Roswell, goes to live a "normal" life and is also not mentioned again; however, she does reveal to Liz that since Max healed her and brought her back she has "changed" and will be different from now on.
For most of the second season, Alex is on a trip to Sweden. However, shortly after coming back and getting Isabel to see him as something more than a friend, he dies in a car accident. The death of Alex has a dramatic effect on Liz, as she is devastated by the loss of her best friend. She finds a photo with Alex's head missing, causing her to suspect that Alex was murdered. Her investigations lead her into trouble with Max and the others when she accuses an alien of killing Alex. Through her investigation, she discovers that Alex never went to Sweden and that he had actually been to Las Cruces College. Just before she boards a flight to Sweden, Liz gets a phone call by which she discovers that a picture of a building seen behind Alex in the photo was in fact torn down before, thus making it impossible for Alex to have taken the picture in front of the building during the time period he was said to have been there. She goes with Maria and Michael and they find out that Alex had been working on the translation of the Destiny book. Even though they find the translation, they are unable to discover the identity of Alex's killer. It is first believed that the women in his pictures from Sweden may be an alien and the one responsible for Alex's death. However, Liz figures outs that the girl that Alex was with, is human thus she could not have been responsible. It is later revealed that the killer is Tess.
Max impregnates Tess while Liz investigates Alex's death. At the end of the season, Max and the others decide to leave Earth after Tess tells Max that their son is dying due to the Earth's atmosphere. Everyone has 24 hours to say their goodbyes. Max and Liz make a last ditch effort to find Alex's killer. Isabel dances with Alex's spirit at his grave. Tess calls Jim Valenti "Dad", and Michael and Maria make love for the first time. As the aliens are about to leave, Kyle remembers how Alex died and Michael decides at the last minute to stay on Earth with Maria. He has found a new home, and, much to everyone's surprise, it's not in outer space. As Michael exits the Granolith, Liz rushes in to tell Max that Tess was the one who killed Alex. Tess reveals the reason she had to brainwash Alex to get him to translate the book. Nasedo and Tess made a deal with Kivar: Tess can return home safely as long as she's carrying Max's child, but she must turn over Max, Isabel, and Michael to Kivar. Max lets Tess go and the gang watches as Tess leaves Earth via the Granolith. Maria realizes that Michael stayed for her. Max tells Liz that he loves her, and that now he must save his son.
**1 DVD
**Eng sub
