Warning: SPOILERS ahead for Resident Alien season 4, episode 1!Resident Alien season 4’s big Harry change creates a big problem for his most exciting upcoming reunion with another character in the sci-fi comedy. Resident Alien season 4, episode 1 saw Harry return to Earth after being held captive by the Greys for a month. In that time, the Mantid, who tricked him into getting imprisoned at the end of Resident Alien season 3, has taken on his identity. Harry returns while the new villain has Asta, Max, and Sahar hostage, challenging him to a fight in their alien forms.