After reluctantly returning to her tourist-trap hometown of Roswell, New Mexico, the daughter of undocumented immigrants discovers a shocking truth about her teenage crush who is now a police officer—he’s an alien who has kept his unearthly abilities hidden his entire life. She protects his secret as the two reconnect and begin to investigate his origins, but when a violent attack and long-standing government cover-up point to a greater alien presence on Earth, the politics of fear and hatred threaten to expose him and destroy their deepening romance.
Episode Ratings Grid
Every episode at a glance, color-coded by rating. Rows are episode numbers within each season, columns are seasons.
The best and worst episodes at a glance. Use this to find must-watch episodes or ones you might want to skip.
🏆 Top Episodes
#1 8.5
S1E13Recovering the Satellites
Max and Michael find themselves at an impasse over how to deal with the 4th alien. Liz has a dangerous encounter with an unexpected visitor. Kyle spirals after uncovering a dark secret about his father’s death. And Michael is forced to make a difficult decision about his future.
#2
S1E12 8.4
Creep
When a major revelation comes to light, Max, Michael and Isobel clash over how to deal with the fallout. Elsewhere, Alex uncovers a secret about Project Shepard and enlists Kyle and Michael’s help looking into it.
#3
S1E6 8.3
Smells Like Teen Spirit
In a series of flashbacks to 2008, secrets are uncovered about Rosa’s final day, Isobel’s mysterious blackouts and Alex and Michael’s relationship in high school.
4. S1E11 "Champagne Supernova" 8.3
5. S3E13 "Never Let You Go" 8.3
6. S1E10 "I Don't Want to Miss a Thing" 8.2
7. S1E9 "Songs About Texas" 8.1
8. S1E5 "Don't Speak" 8.0
9. S1E8 "Barely Breathing" 8.0
10. S2E3 "Good Mother" 8.0
📉 Bottom Episodes
#52
S4E9 6.3
Wild Wild West
After being exposed to her own "alien-power mist," Liz finds herself trapped in a fever dream and a battle to save not just her own life but Max's life as well. Meanwhile, Michael stumbles on a secret Rosa is keeping involving a surprising former adversary.
51. S4E13 "How's It Going to Be" 6.7
50. S1E1 "Pilot" 6.7
49. S4E10 "Down in a Hole" 7.2
48. S4E2 "Fly" 7.2
The Quality Arc
Each point is an episode, plotted chronologically. The colored bands mark season boundaries. Look for upward or downward trends to see if quality improved or declined over time.
Episode Engagement
Vote count shows how many people cared enough to rate. High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.
Rating threshold:
24Standouts
2Infamous
17Hidden Gems
9Forgettable
Top Standout:S1E6Smells Like Teen Spirit
Most Infamous:S1E1Pilot
Best Hidden Gem:S3E13Never Let You Go
Episodes plotted by rating vs. vote count. The vertical line marks the rating threshold (7.5).
More votes = more engagement. Toggle above to compare against global or show-specific median.
Series Trajectory
A simplified view: one point per season. This smooths out episode-to-episode noise to show the overall arc of the series.
Season Momentum
Did each season build momentum or fizzle out? Green arrows mean the finale rated higher than the premiere. Red means the opposite. Longer arrows = bigger swings.
Season Consistency
Some seasons are reliable bangers. Others are hit-or-miss. Each dot is an episode. Tightly clustered dots mean consistent quality. Scattered dots mean a mixed bag.
Each dot is an episode. Clustered dots = consistent quality. Scattered dots = variable season. Hover for episode details.