Torn between the heartache of Max's sacrifice and the joy of Rosa's resurrection, Liz focuses on moving out of Roswell with Rosa, who begins experiencing side effects from her resurrection.

Liz is forced to put her latest experiment on hold after Rosa begins to struggle with her new life in Roswell. Michael helps Maria with a family crisis. Isobel joins her mother for a day of spiritual healing.

Isobel makes a risky choice despite its potential consequences. Alex and Michael work together to unravel the mystery surrounding the night Nora's spaceship crashed in 1947. Cameron shows up looking for answers about Max.

On the verge of a breakthrough to save Max, Liz turns to Kyle for a favor that could land him in hot water. Michael and Alex's investigation into Nora leads them to a farm. Cameron confronts Jesse about her sister's whereabouts.

The discovery of some complications with Max's pod forces Liz, Michael and Isobel to confront the possibility that they may not be able to save him. Maria and Alex make amends.

Maria's investigation into her mother's disappearance leads her and Alex to the home of a mysterious boot maker. Isobel's night out leads her into the arms of someone unexpected. Liz is dealt a devastating blow.

Liz is forced to revisit a painful part of her past when her mother shows up. Michael urges Maria to seek help after she experiences a strange vision. Kyle's attempt to get Steph to open up doesn't go as planned.

Max sets out to find Cameron after learning that she's gone missing. Michael grows concerned about Maria after a surprising discovery about her family history. Rosa makes a decision about her future.

After uncovering a surprising connection to their past, Michael and Isobel learn the painful truth about the night Tripp attacked their mothers. Alex confronts his father about their troubled family history.

After uncovering a cryptic message from the past, Alex, Isobel, Max, Michael and Maria set out in search of answers. Cameron encourages Liz to reach out to someone from her past after Arturo gets detained.

Liz opens up to Diego about all the good her findings could do. Max enlists Kyle's help with the recent abductions. Michael does his own investigating into Alex's disappearance.

As the town prepares for CrashCon, Liz and Max attempt to piece together who may be behind a potentially deadly plan targeting the festival. Maria and Isobel take drastic measure to learn more about the night Mimi disappeared.

Having realized that a deadly threat has infiltrated CrashCon, and with Max facing immediate danger, Liz and Isobel must make a heart-wrenching choice.