In April 1986, the city of Chernobyl in the Soviet Union suffers one of the worst nuclear disasters in the history of mankind. Consequently, many heroes put their lives on the line in the following days, weeks and months.
After making a pact to break up before college, Claire and Aidan retrace the steps of their relationship on one last epic date, revisiting familiar and unexpected places as they question: stay together or say goodbye forever?