>> until he's find, dead or alive, i've got to find him. >> parts of oklahoma were struck by tornadoes, as well. frank wood rushed his family into the storm shelter as the twister struck. >> we've got to go now! it's coming right over us. we're right in its path. >> one beloved member of the wood family, roxie the dog, didn't make it into the shelter. all these stories and details tonight and witness the courage of people beset by catastrophe and tragedy. but we start at the beginning. it's 5:40 on sunday evening and a monster rakes across joplin, missouri. >> strong tornado! >> as the twist errors towards