In Secret Invasion, Marvel finally made good on the breadcrumbs it introduced in Captain Marvel by bringing back the Skrulls, a shapeshifting alien race that can assume anyone’s identity. Paranoid hijinks abound in the 2019 film, but Secret Invasion takes it further with its spy thriller twist. Anyone could be a Skrull at any time, and that made things exciting... at first. But as the herd has thinned and the series gets close to its finale, it may be running out of tricks to keep audiences engaged.
