H.E.R.B.I.E. gets possessed and then destroys himself to save the F4, after making the building fight the team.
Great story by Bill Mantlo, and, of course, great John Byrne art. Look how cute HERBIE is when he electrocutes Thing.
There’s also a scene where Johnny sees Dazzler in concert and seems to be smitten.
Also, nice way to dissociate the comic from the terrible, terrible cartoon.