A routine school day turned into a fight for survival for two Oklahoma teachers when a massive tornado came pummeling towards their building. With very little time to spare, Sam and Jennifer did everything in their power to protect their pre-k and kindergarten students from the storm's life-threatening debirs, including throwing themselves down on top of the kids. Through their acts of bravery, Sam and Jennifer were able to save the lives of their entire classroom. "I was just a teacher that day, doing what we're supposed to do," Sam says. Here more about their incredible story in the video, above.