NOTE: Due to the serialized nature of the series, even these brief episode descriptions may contain spoilers.
High-school student Liz Parker finds her life irreversibly transformed when her friend Max, whom she learns is an alien, miraculously heals her otherwise fatal gunshot wound.
THE MORNING AFTER
Liz suspects that the new substitute geometry teacher, Kathleen Topolsky (who will stay on as guidance counselor), is an alien hunter; Michael steals a key from Sheriff Valenti that might hold the secret to the aliens' past.
Max, Isabel and Michael worry that Maria might reveal their secret to Sheriff Valenti, while they consider investigating their past.
Kyle's friends beat up Max; Liz sits vigil over her dying grandmother.
Liz considers many suspects in the disappearance of her journal, in which she describes how Max used his alien powers to save her life.
Liz, Maria and the aliens travel to Texas to investigate a geodesic dome, which they believe might hold the answer to aliens' origin.
The gang escapes from Atherton's house with a pendant that leads them to an Indian reservation and to answers about the mysterious fourth alien.
While Max lies injured in the hospital, the gang substitutes Alex's blood for his so that Max will not be detected as an alien.
A rare winter heat wave sparks unlikely romantic couplings and leads to Alex learning the truth about Max, Isabel and Michael.
When Michael becomes sick after visiting River Dog, his friends must all come together to save him.
THE TOY HOUSE
Max arouses his mother's suspicion when he is forced to use his powers to save her from a fire.
INTO THE WOODS
When strange lights in the night sky outside Roswell suggest an extraterrestrial landing, the aliens and Sheriff Valenti each strive to be the first to find the landing site.
When a UFO convention comes to town, Max is threatened by one man who wants to expose him and by another who wants to kill him.
As the winner of a radio contest, Liz is set up with her "perfect" date; Max and Kyle react to Liz's date by getting drunk together.
Michael must attempt to assert his independence when his father's abuse becomes physical.
Liz and Max's make-out sessions produce flashes from his past that lead toward another clue to his origin.
Ms. Topolsky returns to Roswell with a warning for the aliens and their friends; a beautiful new girl at school befriends Isabel.
TESS, LIES AND VIDEOTAPE
The aliens and their friends become suspicious of Tess, while Max finds himself strangely drawn to her.
The aliens and their friends investigate Tess, fearful that she is the dangerous shapeshifter, Nasedo.
MAX TO THE MAX
Tess tells the aliens more about Nasedo, who shapeshifts into Max and kidnaps Liz in an effort to entrap the government's special agents.
THE WHITE ROOM
When Max is captured by the Special Unit, Nasedo and Tess team up with the gang to break him out.
The aliens try to reclaim their lives from the Special Unit and end up learning their destiny.