Are you ready for the leadership moment?

Merck's Roy Vagelos commits millions of dollars to develop a drug needed only by people who can't afford it · Eugene Kranz struggles to bring the Apollo 13 astronauts home after an explosion rips through their spacecraft · Arlene Blum organizes the first women's ascent of one of the world's most dangerous mountains · Joshua Lawrence Chamberlain leads his tattered troops into a pivotal Civil War battle at Little Round Top · John Gutfreund loses Salomon Brothers when his inattention to a trading scandal almost topples the Wall Street giant · Clifton Wharton restructures a $50 billion pension system direly out of touch with its customers · Alfredo Cristiani transforms El Salvador's decade-long civil war into a negotiated settlement · Nancy Barry leads Women's World Banking in the fight against Third World poverty · Wagner Dodge faces the decision of a lifetime as a fast-moving forest fire overtakes his firefighting crew