Catch up TV on Mighty Ships. Watch the latest and all other episodes of Mighty Ships now online, broadcast on 7Two. Catch up on your favorite 7Two TV show: Mighty Ships. Replay tv on its best! Learn about the inner workings of some of the world's most sophisticated vessels, from the mechanics of modern sea-faring to the human dramas on board. Whether it's cargo container ships, ice-breakers, or livestock carriers, Mighty Ships is as much about what happens inside the ship as the journey each vessel makes.