Catch up TV on Disaster Earth. Watch the latest and all other episodes of Disaster Earth now online, broadcasted on 7Two. Catch up on your favorite 7Two TV show: Disaster Earth. Replay tv on its best! Take a trip inside the Earth itself and into a not-so-distant future to reveal the threats of disaster. Scientists suspect an island off the northwest coast of Africa could someday trigger a tsunami the likes of which no human has ever seen, spawning city-destroying waves. Follow investigators as they gather evidence to support their case.