12:00Sam and Mark's Guide to Dodging DisasterShortsEpisode 20: TornadoesCBBC Duration: 5 minutes Sat 10th Jul 2010, 12:00 on BBC Two Northern IrelandA light-hearted look at how to survive the most dangerous situations that Mother Nature can chuck at you.ContributorsPresenter:Sam NixonPresenter:Mark RhodesNarrator:Hugh DennisDirector:Duncan ChardSeries Producer:Doug HopeGenresChildren'sFactualBrandSam and Mark's Guide to Dodging DisasterSeriesSam and Mark's Guide to Dodging Disaster: Shorts Source: BBC Online