A decade after the death of her sister, Liz reluctantly returns to her small hometown and reconnects with her teenage crush Max.
On the anniversary of her sister’s death, Liz searches for answers. Meanwhile, Max defends his relationship with Liz against his siblings' criticism.
Suspicious of Max’s involvement in Rosa’s death, Liz taps Maria to find out more about her sister’s last days.
When a local hospital goes dark, Max grapples with using his powers to help. Liz confronts Kyle to learn more about who killed Rosa.
Liz gets caught in a dangerous crossfire when shes coaxes a local documentarian. Isobel suffers a series of mysterious blackouts.
Flashbacks to 2008 uncover a bevy of secrets about Rosa’s last day, the truth about Isobel’s blackouts and the start of Alex and Michael’s relationship.
After spending a day with Mimi, Maria, and Alex, Liz has a devastating revelation. Later, Max asks Liz to help him lead a normal life.
As Isobel's health deteriorates, Liz and Michael search for ways to help. Max turns to his mother for answers about his alien symbol.
In search of a cure for Isobel and Maria's sick mother, Max, Michael, Liz and Maria travel to Texas to meet a faith healer.
Liz helps Isobel regain her memories, which provides an alternative conclusion about Rosa's demise. A mysterious murder streak draws attention.
While the UFO Emporium Grand Reopening Gala distracts Roswell, Liz, Michael and Isobel face off with an unsuspecting threat.
While Max, Michael, and Isobel disagree on how to handle a tough situation, Alex, Kyle and Michael uncover more secrets about Project Shepherd.
As a new presence draws a wedge between Max and Michael, Kyle unearths a shocking secret. Liz reunites with an unexpected visitor.
Suppressing her emotions, Liz sets her sights on leaving town as Rosa experiences strange side effects during her recovery.
Rosa confronts Liz over her reputation. Michael helps Maria with a family matter. Isobel faces a major personal decision.
An uneasy duo, Michael and Alex team up for an investigation as Isobel wrestles with inner turmoil. Elsewhere, Maria seeks answers from Liz.
When Liz tries to make a breakthrough with Kyle's help, Michael and Alex get clarity on the past. Isobel uses her skills to change someone's mind.
Liz and Michael consider the possibilities concerning Max while Isobel works to confirm Rosa's claims. Then, Maria digs deeper into her family.
As Liz deals with a stunning setback, Maria takes Alex on a mission that rocks their lives. Isobel's outing leads to unexpected encounters.
An unwanted family reunion raises suspicion for both Liz and Rosa. Meanwhile, Maria has a strange vision about Kyle that draws Michael's concern.
Despite having a new persona, Rosa's old ways guide her future. Maria tests a new talent while a missing person search yields shocking results.
Michael, Isobel and Alex learn the stark truth about their families through an unlikely source as the town sheriff's investigation points elsewhere.
Full of questions, Alex takes a group on the road and finds much more than answers. Back at home, a crisis erupts between Liz and her father.
Liz considers sharing her latest findings with a past flame. Michael searches for Alex's whereabouts while Kyle gets enlisted for an investigation.
Friends, family and foes collide at the town's biggest event of the year when a deadly plot puts everyone's lives in jeopardy.
As a threat hits their town, the group finally unlocks the truth about Roswell's past. Later, Liz receives a life-changing offer.
A year after an intense encounter, Max lets his siblings in on a secret. Meanwhile, Liz adjusts to a new life and lab in Los Angeles.
Jones reveals more details that make Max, Isobel and Michael question their origins. Liz must face her past.
Max, Isobel and Maria try to make sense of Maria's vision, while Alex starts his new job and Liz returns to Roswell.
Liz has a disturbing dream, Isobel and Maria take a trip together and Kyle receives an unexpected message.
Kyle's condition leads to a shocking discovery. Tensions reach a new high when another dead body is found in Roswell.
Liz works with Max to investigate the break-in, but something feels off. Isobel and Rosa explore Maria's mind.
Liz comes up with a plan to try and outwit Jones as the siblings have a major revelation.
Michael and Alex team up to save Max. Isobel and Rosa travel back in time to help Maria. Liz experiences a breakthrough.
Liz and Max head to Los Angeles and search for a way to stop Jones. The team hunts down another alien in Roswell.
Liz and Max race to find Heath, while Isobel and Michael try to get through to Dallas.
Jones tries to strike a deal with a desperate Liz. Rosa's abilities come in handy as the fight to save Max continues.
Isobel helps Kyle save a life. Liz and Heath inch closer to a solution. Max considers what life would be like without his powers.
The team comes together for the ultimate showdown against a powerful enemy — but will everyone make it out alive?
Liz focuses on her teaching while Max helps his ex-partner with a bank heist case in now-peaceful Roswell. But a bizarre storm puts everyone on edge.
A visitor from Liz's past comes bearing gifts. Anatsa digs in on a story about the bank heists, angering Max and putting Kyle and Isobel in a tough spot.
Liz, Max, Michael and Cameron put a plan into action that could finally get them a step closer to catching Bonnie and Clyde. Meanwhile, Kyle has a date.
Maria gets devastating news. Michael gets closer to Bonnie, but Clyde is not as easily persuaded. Liz faces a roadblock while looking at a skin sample.
Michael confronts Max about what he's hiding. Maria helps Dallas find answers, and Michael makes an unsettling discovery about himself.
Liz turns to Shivani for help while Bonnie looks to Max for protection. Meanwhile, Kyle and Isobel deal with the fallout of their actions.
Liz and Max have a major disagreement, prompting her to turn to Rosa for guidance. Maria struggles to connect to her mother's spirit.
With missing friends and mysteries all around, Liz turns to fringe science. But in working alongside her new mentor, she faces an unsettling revelation.
After being exposed to her own alien-power mist, Liz is trapped in a fever dream and must battle to save not just her own life but Max's as well.
Max and Rosa begin to uncover what Liz has been hiding. The trail for Michael and Maria to locate their missing friends runs cold.
Liz begins to see the error of her ways as she faces a new threat and is forced to make a difficult decision. Max finds himself in an intense standoff.
As Roswell faces an epic storm, Max joins Isobel on a quest to save Bonnie and Liz struggles with her memory.
With her memory severely damaged, Liz doubts her abilities and asks for help. Isobel shares a memory with Max. Michael makes a vow.