9 Burning Questions For Resident Alien Season 4 & What We Think The Answers Will Be

Warning: Spoilers ahead for the Resident Alien season 3 finale.

Summary Resident Alien season 4 needs to address the cliffhangers and loose ends left in the chaotic and exciting season 3 finale.

A new shapeshifting insectoid alien villain, the Mantid, poses a threat in Resident Alien season 4.

Characters like Sheriff Mike, D'arcy, and Heather will face challenges and questions in Resident Alien season 4 as they deal with new dangers.

Resident Alien season 3 ended on a huge cliffhanger that left several questions about various characters unanswered, so the next installment will need to tie up some loose ends. Although Resident Alien season 4 has yet to be confirmed, the writers have made it clear through their work in Resident Alien season 3's ending that there's plenty more story to be told. The fate of Harry Vanderspeigle isn't the only part of the plot that needs addressing. Many of the other residents of Patience, Colorado were also left in compelling scenarios that beg for resolution.

Even though Resident Alien season 3 was the shortest installment of the Syfy show yet, its eight-episode run was one of the most chaotic and exciting eras in the show's history. The stakes had never been higher, with both the safety of Earth being called into question but also the welfare of specific individuals. While certain threats have passed for now, Resident Alien season 4 won't be a laid-back affair. New and returning figures entered the fray in season 3's final moments that will strongly influence the narrative going forward.

Related Resident Alien's 8 Greatest Cameos From Sci-Fi Stars, Ranked Resident Alien is a quirky and charming sci-fi show that has many connections to the genre as a whole, including some incredible cameo appearances.

9 What Did The Mantid Do To Max & Sahar?

Max immediately saw through the Mantid's disguise

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Resident Alien season 4's new villain is a member of a shapeshifting insectoid alien race called the Mantids. While the story's next big antagonist doesn't yet have a name, the Mantid has already proven to be a powerful, unpleasant, and cruel individual. As such, it's all the more concerning that Resident Alien season 3 ended with Max and Sahar visiting the Mantid while under the impression they were dropping in on Harry. Max's mutation immediately allowed him to see through the Mantid's ruse, but it's unclear how the nefarious alien will handle being rumbled.

The cold open of Resident Alien season 3, episode 8, "Homecoming," shows the Mantid easily decapitating and consuming the head of an unfortunate individual, so Max and Sahar could be in great danger. That being said, the young duo have a decent amount of plot armor when it comes to their survival. While it's unlikely that the pair will be killed by the Mantid, the show's new bad guy could still hold them hostage and impersonate them around town to conceal the fact they're missing.

8 How Will Sheriff Mike Handle His Encounter With The Greys?

Patience's sheriff had his world turned upside-down

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Mike is the Resident Alien character who has grown the most over the Syfy show's three seasons, but he has always been steadfast in his belief that extraterrestrial life is nothing but a myth. However, "Homecoming" ends with Patience's sheriff coming face-to-face with a member of the Grey Alien race. Mike's direct encounter with an alien lifeform is surely all the proof he needs to finally accept what the rest of the main characters already know.

It won't be an easy transition into believing in aliens for a strong-minded character like Mike, but he'll be left short of other options.

The intense stubbornness of Sheriff Mike could lead to him denying what he saw with his own two eyes, as will likely be the case for a short time. Eventually, this refusal to accept the truth should fade, meaning he can join the fight against the Greys and the Mantid in Resident Alien season 4. It won't be an easy transition into believing in aliens for a strong-minded character like Mike, but he'll be left short of other options.

7 Did The Greys Do Anything To The Hawthornes' Baby?

D'arcy brought the baby to Earth for the first time in the Resident Alien season 3 finale

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One of the most horrifying storylines of Resident Alien season 3 was discovering what the Greys had done with Kate's baby at the end of Resident Alien season 2. The helpless infant was rescued by D'arcy during season 3's epic finale but had been aboard the Greys' ship for its entire life before that moment. While the Hawthornes' little girl is now back home where she belongs, it's tough to believe the baby hasn't been altered in some way.

The Hawthorne family already has one unique family member in Max, as he sports the mutation that allows him to see through the disguises of all aliens - including Harry. The baby may also share this talent, which could have been why the Greys were holding on to her to study her. If not, then the youngest Hawthorne may have been subjected to experiments to see if any other useful abilities revealed themselves.

6 How Will Harry & Bridget Escape In Resident Alien Season 4?

The Mantid tricked Harry into imprisonment

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Resident Alien's main character ended the season 3 finale imprisoned aboard the Greys' moon ship with Bridget. After being tricked by the Mantid, Harry is currently being impersonated by his new adversary on Earth, while everyone else also believes Bridget is dead. While escape looks like it could be an elusive concept in Resident Alien season 4, there's actually a simple way they can regain their freedom.

Harry mentions a specific Mantid in Resident Alien season 1, episode 9, "Welcome Aliens," suggesting he has already met the show's new villain.

"Homecoming" serves as a reunion between Harry Vanderspeigle and Robert Hutchins, with the latter now residing on the Greys' ship in the belief there is nothing left for him on Earth. As such, Robert refuses to go with Asta, D'arcy, and the fake Harry when they flee the enormous spacecraft. This means Robert is still on board, and he can help Harry and Bridget escape, just as he helped the others in the Resident Alien season 3 finale.

5 Will The Alien Tracker Be A Friend Or Foe?

Peter Bach has undergone extensive cybernetic augmentation

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Peter Bach, also known as the Alien Tracker, is believed dead by the end of Resident Alien season 2, but season 3 reintroduces the character in a new form. Like Max Hawthorne, Peter can see through an alien's disguise, and General McCallister planned on using that ability to aid in her plan to save Earth. To do so, Linda Hamilton's Resident Alien character augmented the body of Peter with formidable government tech that was supposed to allow her to puppet the compromised Alien Tracker.

Related Resident Alien Season 4 Must Keep The Best Alien Race Change Made During Season 3 Resident Alien season 3 had a reduced episode count but more than made up for it with its new developments, which need to continue in season 4.

What the general didn't count on was Peter regaining his sentience mid-mission. While Peter and Harry parted as allies during their last encounter, it's uncertain what Peter's new upgrades have done to him. Thankfully, he seems aware enough to reach out to Liv in "Homecoming," so he may be more of a hero than a villain. In addition, he will be a key component in bringing down the Mantid and possibly even the Greys.

4 Has D'arcy's Quest For Heroism Been Quenched?

Alice Wetterlund's Resident Alien character was willing to sacrifice herself

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D'arcy's main arc in Resident Alien season 3 was one of trying to find purpose. She wanted to make a notable impact, and she finally got her chance when Harry completed the bomb to take down the Greys' ship. While D'arcy ended up being freed of the responsibility of sacrificing herself to save the planet, she was still able to undertake the vital task of rescuing the Hawthornes' baby from the Greys' moon ship in the Resident Alien season 3 finale. What's now unclear is whether this was enough to satisfy her need to be the hero.

While D'arcy may not have expected to come back from her mission alive, she still has an important role to play in stopping the Greys and possibly even the Mantid from achieving their respective goals.

It's likely that D'arcy does indeed feel a huge sense of accomplishment for saving the youngest Hawthorne. However, it would be out of character for her to step aside with the feeling that her work is done. While D'arcy may not have expected to come back from her mission alive, she still has an important role to play in stopping the Greys and possibly even the Mantid from achieving their respective goals. In short, D'arcy still has plenty of opportunities for more slo-mo action shots, like in the Resident Alien season 3 finale.

3 How Long Will It Take For The Mantid To Be Discovered?

The Mandtid can't stay hidden forever

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"Homecoming" reveals that the Mantid planned to take on Harry's form and live in his cabin by the lake. The new villain even had several interactions with Asta and the others while impersonating Harry, and they all fell for the ruse. Although the Mantid's plan appeared to be going off without a hitch, his cover was blown almost immediately when Max visits and immediately realizes his friend isn't the alien who answers the door.

So, the Mantid's true nature has already been revealed, and the Alien Tracker will also be able to do this. As a result, what it comes down to is a matter of time. The Mantid likely won't kill Max or Sahar due to them being key members of the Resident Alien cast, so it depends on how long he keeps them hostage while the Mantid completes whatever plot it is he has in mind. In all likelihood, the Mantid's real identity will be wider knowledge long before the end of Resident Alien season 4.

2 Will Heather Come Back In Resident Alien Season 4?

Heather was forced to leave Earth by the Greys in season 3

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One of the most heart-wrenching moments in Resident Alien season 3 was when Heather was forced to betray and then abandon Harry while the pair were so madly in love. While Joseph was the one who blackmailed Heather into exile, and he's now switched sides, that doesn't mean it's safe for her to return. At the time, Joseph was working for the Greys, who had threatened Heather's family if she didn't do their bidding. Unfortunately, while the Greys' plot was foiled, they're still very present.

Due to the Greys' moon ship still being in orbit of Earth, Heather coming back could put her family at risk. On the other hand, her presence may no longer concern the Greys since their plan failed in "Homecoming." So, while it could be dangerous for Heather to reconnect with Harry in Resident Alien season 4, it could be a gamble she's willing to take if the Greys have lost interest in her for now.

1 Will The Greys Continue Their Plan To Transform Earth's Atmosphere?

The Greys' persistence shouldn't be underestimated

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The Greys' plot to use the Yellowstone caldera to terraform Earth in Resident Alien season 3 was the show's biggest threat. Before their real plan was revealed, it was believed that the Greys wanted to destroy the planet, not turn it into their new home. With Joseph's help, Earth's atmosphere was saved from transformation, foiling the Greys' insidious plans for the future of their civilization.

Related Resident Alien Season 4's New Villain Means It's Even More Important That 1 Character Doesn't Return Resident Alien season 3 introduced new characters as well as bringing back old faces, but its new villain means one figure needs to stay away for now.

The Greys may have been stopped for now, but they have resources that seem almost endless, and they probably won't take kindly to being stopped when they were so close to success. While it's possible the Greys will simply reload and try again to populate the Earth, they could also turn violent instead and enact the plan everyone thought they were originally attempting and try to destroy the planet in Resident Alien season 4.

Resident Alien seasons 1-3 are available to stream on Peacock. Resident Alien season 4 has yet to be confirmed.