Collects Skrulls Vs. Power Pack #1-4. Sssshh! There's this invasion, see, and it's a secret... No, no, not that one. I mean the one where dastardly SKRULLS impersonate Marvel's premiere all-kids super hero team, commit crimes around the universe in their form, so intergalactic bounty hunters capture and imprison Alex, Julie, Jack and Katie in Space Juvie...the dreaded reform-school planet Hadith-VI! And the only ones with any hope of springing them are FRANKLIN RICHARDS, H.E.R.B.I.E., and SMARTSHIP FRIDAY!