This program explores how the March 2011 earthquake and tsunami that struck Japan started a chain of events that resulted in the largest nuclear accident since Chernobyl. The content provides supplemental support for selected outcomes in Environmental Science 20 and Physical Science 20. This film could also support students as they examine the effects of radioactivity and nuclear technology on society in Physics 30. In addition, the video could be an engaging springboard for the Student-Directed Study portion in any of these courses.