With grey aliens and shapeshifting mantids setting their sights on Earth, the Resident Alien universe has been getting a lot more crowded lately. Still, there’s always room for one more, especially if ...

Season 4 of the series picks up where Season 3 ended – with Harry (Alan Tudyk) and his baby Bridget stuck in prison on the Grey Moonbase and a new alien shapeshifter impersonating him back on Earth.