‘Remember This: The Lesson of Jan Karski’ was co-written by Deering High School graduate Clark Young and stars acclaimed actor David Strathairn.

Karski was a member of the Polish resistance during World War II who volunteered in 1942 to infiltrate the Warsaw Ghetto, where Jews were rounded up and imprisoned by the Germans, as well as a Nazi death camp.

Now Maine native Clark Young is helping Karski’s story and lessons reach a new generation. Young, a 2005 graduate of Deering High School in Portland, co-wrote the one-man play “Remember This: The Lesson of Jan Karski” starring Oscar-nominated actor David Strathairn. The play begins a world tour Oct. 6 in Washington D.C., followed by a run in Chicago in November. It is not scheduled to play in New England.