The story of the May 20, 2013 tornado that hit the town of Moore, Oklahoma.
Eyewitnesses recall a tornado that struck Joplin, MO., on May 22, 2011.
People who were trapped by tornados in Alabama and Oklahoma recell their experiences
Tornado survivors include a college soccer team in Tennessee ; a group of strangers who sought refuge in a gas station beer cooler in Missouri; and a teacher and her students in Oklahoma
Meteorologists and engineers examine the potentials effects of a tornado on Washington, D.C.
Meteorologists, engineers and emergency-management experts examine the potentials effects of a tornado on Miami
Tornado survivors discuss the reasons they believe their lives were spared
A multiple-vortex tornado that stuck Hattieburg, Miss., on Feb. 10, 2013, is recalled in the season 2 premiere.
A look at an EF4 tornado that stuck the small town of Henryville, Ind., on March 2,2012.
An EF4 multiple-vortex tornado that stuck Tuscaloosa, Ala., on April 27, 2011 is recalled
An EF4 tornado that stuck Washington, Ill., on Nov 17, 2013, is recalled
A shelter provides momentary refuge from a storm; a grandmother saves herself and three toddlers when she takes cover in a bathtub; an a man feels guilty after turning his back on a woman caught outside
A dingle mom and her two sons survive getting sucked into the vortex of a tornado; and a Mississippi family learns that survival sometimes means needing help. Also: disaster preparation in a Texas community
A woman risks everything to save her two children; a family tries to save their neighbors; and a woman and her daughter discover that there is more to survival then enduring a terrifying ordeal
Strangers work together to survive a tornado; storm chasers rescue a family; friends help a family trapped inside their home; and a police officer saves a toddler injured during a storm
Strangers depend on one another to survive; and a family discovers a hard part of survival: separation
A family decides not to go to the town shelter; a Nigerian immigrant comes to terms with losing his wife; and a business trip on the day of the tornado almost results in a tragedy
Rescue workers save the daughter of a woman who lost her mother to a tornado three years earlier; a girl finds courage she didn't know she had; and a member of a campus ministry and a storm chaser join forces to save a storm victim
Strangers take shelter in a frozen yogurt store when a tornado hits Joplin, MO.; a family needs the help of neighbors after winds devastate their town; and parents use a cell phone to save their life of their daughter during a storm.
