Johnny Bravo Season 2 Episode 21 Loch Ness Johnny / Den Mother Johnny / Quo Doofus >Carl shoves Johnny through a time portal prop he bought from a TV show. The portal works, and Johnny is sent back to Ancient Rome, where he meets Julius Caesar, foils Brutus, and eventually ends up in the Coliseum. The timely eruption of Mt. Vesuvius sends Johnny back home.