Catch up TV on Ben 10. Watch the latest and all other episodes of Ben 10 now online, broadcasted on 7Two. Catch up on your favorite 7Two TV show: Ben 10. Replay tv on its best! Ben Tennyson turns from zero to hero when he chances upon a paranormal wristwatch, the Omnitrix, when it crashes to earth in a meteorite. Morphing him into one of 10 different alien super heroes, Ben and his voice-of-reason cousin Gwen make it their mission to save the world from evil, guided by their Grandpa Max, who has his own slew of supernatural stories to share.