The Last Full Measure recounts an untold story about the heroism of American soldiers in Vietnam. Jeremy Irvine plays William Pitsenbarger, an Air Force medic who saved over 60 men in one of the harshest battles of the Vietnam War. Offered the chance to escape on the last helicopter out of the combat zone, Pitsenbarger stayed behind to save and defend the lives of his fellow soldiers. Twenty years later, his comrade in arms (William Hurt) and father (Christopher Plummer) seek the help of investigator Scott Huffman (Sebastian Stan) and other surviving veterans of the battle to finally procure him The Congressional Medal of Honor he deserved.