Resident Alien (2021–2025)

1. S01E01PilotJanuary 27, 2021 8.3An alien crashes on Earth and hides in a remote Colorado mountain town; after assuming the identity of the town doctor, his nefarious missio
2. S01E02HomesickFebruary 3, 2021 8.1In his first week at the clinic, Harry struggles to diagnose a strange feeling.
3. S01E03SecretsFebruary 10, 2021 8.1Harry tries to keep his secret; Asta faces her past.
4. S01E04Birds of a FeatherFebruary 17, 2021 8.3Harry travels to the Ute Reservation to help Asta's grandmother; he learns what it means to belong. Harry has a surprise awaiting him when h
5. S01E05Love LanguageFebruary 24, 2021 8.3An unexpected visitor teaches Harry about the human convention of marriage, which is another cultural barrier Harry must familiarize himself
6. S01E06Sexy BeastMarch 3, 2021 8.2Harry copes with jealousy when the mayor hires an annoyingly perfect new town doctor.
7. S01E07The Green GlowMarch 10, 2021 8.3Fearing he's facing failure, Harry enlists an unlikely ally to help find his ship.
8. S01E08Season's bestEnd of the World As We Know ItMarch 17, 2021 8.4Harry must rely on Asta and D'arcy for survival.
9. S01E09Welcome AliensMarch 24, 2021 8.3Harry and Asta attend an alien convention.
10. S01E10Heroes of PatienceMarch 31, 2021 8.3On the verge of completing his mission, Harry faces his own humanity.

Season 1 ranked & reviewed

1. S02E01Season's bestOld FriendsJanuary 26, 2022 8.1Harry, the alien, is back on Earth but doesn't remember who he is and only Asta can keep him safe.
2. S02E02The WireFebruary 2, 2022 8.0Harry has a plan to save Asta and himself but first he must attend the Sheriff's poker game.
3. S02E03Girls' NightFebruary 9, 2022 7.6Harry meets a woman unlike any other and realizes that she is the key to his new mission.
4. S02E04Radio HarryFebruary 16, 2022 7.8Is Harry building another bomb? Asta is going to find out as they go camping on the reservation.
5. S02E05Family DayFebruary 23, 2022 7.8Harry and Asta's trip is interrupted by an uninvited relative as the town celebrates family.
6. S02E06An Alien in New YorkMarch 2, 2022 7.9Harry and Asta travel to New York looking for one of his people, but things go horribly wrong.
7. S02E07Escape from New YorkMarch 9, 2022 8.0Harry and Asta find what they are looking for but not what they need as danger closes in.
8. S02E08Alien Dinner PartyMarch 16, 2022 7.8It's a surprise party as everyone gathers to celebrate Harry, but some dangerous guests cause havoc.
9. S02E09AutopsyAugust 10, 2022 7.7Asta is overwhelmed with guilt after she, Harry, and D'arcy get rid of the dead body.
10. S02E10The Ghost of Bobby SmallwoodAugust 17, 2022 7.7Asta helps Harry learn how to deal with his newfound fear of death.
11. S02E11The WeightAugust 24, 2022 7.6Asta tells Dan about the shooting; Harry learns what it takes to be a good friend.
12. S02E12The Alien WithinAugust 31, 2022 7.8Halloween comes to Patience, and Harry sheds his human mask.
13. S02E13Harry, a ParentSeptember 7, 2022 7.8After losing the alien baby, Harry learns which alien race is on Earth and it's not what he expected.
14. S02E14Cat and MouseSeptember 14, 2022 7.7Harry goes head-to-head with one of his biggest enemies.
15. S02E15Best of EnemiesSeptember 21, 2022 8.0Harry has an unexpected partner as he tries to infiltrate a military base to find his alien baby.
16. S02E16I Believe in AliensSeptember 28, 2022 8.0Harry comes face to face with his greatest enemy and makes a choice that may affect Earth forever.

Season 2 ranked & reviewed

1. S03E01Lone WolfFebruary 14, 2024 7.8In an attempt to gather information on the Grey Aliens, Harry puts Asta in harm's way.
2. S03E02The Upper HandFebruary 21, 2024 8.3D'arcy inserts herself into Harry's mission, while Kate grows more uncomfortable in her own home.
3. S03E03141 SecondsFebruary 28, 2024 8.2Harry tags along on Ben, Kate and Max's family trip, hoping the mayor will lead him to answers.
4. S03E04Avian FluMarch 6, 2024 8.1Harry gets distracted from his mission, while Mike and Liv make a huge discovery.
5. S03E05LovebirdMarch 13, 2024 8.1Asta and D'arcy take a drastic step in an attempt to get Harry back on track.
6. S03E06Bye Bye BirdieMarch 20, 2024 7.8Harry hits rock bottom. Kate begins seeing the truth. Mike helps Liv face her greatest fear.
7. S03E07Here Comes My BabyMarch 27, 2024 8.1Harry and Asta get surprise visits. Ben grows suspicious of Mike and Liv's private investigation.
8. S03E08Season's bestHomecomingApril 3, 2024 8.5Harry and Asta team up with an unlikely ally to try to save the Earth.

Season 3 ranked & reviewed

1. S04E01PrisonersJune 6, 2025 8.0Harry must escape an outer space prison to stop a dangerous threat in town.
2. S04E02The Lonely ManJune 13, 2025 8.0Harry and Asta work together to try and get something Harry desperately needs.
3. S04E03Ties That BindJune 20, 2025 7.9Harry and D'arcy travel to an unexpected place to recover an alien device left behind by his people.
4. S04E04Truth HurtsJune 27, 2025 7.6Harry and Heather reunite, but their relationship is more complicated than ever.
5. S04E05The Human ConditionJuly 4, 2025 7.9Harry struggles to find balance with his new human form.
6. S04E06Soul ProvidersJuly 11, 2025 8.1Harry is brought in front of The Galactic Housing Council to answer for his crimes.
7. S04E07Daddy IssuesJuly 18, 2025 8.1Harry has to prove himself to someone from his past.
8. S04E08Season's bestMine TownJuly 25, 2025 8.4Harry enlists an unlikely ally to help him save Patience.
9. S04E09Tunnel VisionAugust 1, 2025 8.2With lives hanging in the balance, Harry is put to the test.
10. S04E10The End Is HereAugust 8, 2025 8.4Harry faces one final threat, and one that forces him to use more than just his alien strength.

Season 4 ranked & reviewed