The secrets of Area 51 are revealed to Ben Tennyson by Colonel Rosum after Old George infiltrates Area 51. (ChamAilen and Ultimate Wildmutt first appears in this episode).
Views: 4629
Serie: Ben 10: Ultimate Alien
Guest Star: Chris Pratt, John DiMaggio, Paul Eiding
Episode Title: Prisoner #775 is Missing
Duration: 00:23 23min
Air Date: 2011-04-29
Year: 2011
IMDb: 8.3
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